2600: The Hacker Quarterly (Volume 4, Number 11, November 1987)

8/9/2019 2600: The Hacker Quarterly (Volume 4, Number 11, November 1987)

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o Rar! is always looking for information hat we can pass ono you. Whethr t s an article, daa, or an Intestig news

im-if you have someting to offer, send it o s!

Remember, much of 2600

is wrtten by ou eades. Y Y Y QCal our office or 88S to arrange an uload Send mail

99

o

11953-009(516) 751260

UY BB#

Availble 24 hours a day wit a wie

nge f infrmato o coptr,lehne, and hakin.

D!

914-75-


3/24

We now have several ways of stayingn touch wth the rest of the worl. As

promise, the first official buetinboars of agazine are now onnewith more on the way.

We re uie happy with what wevestarte out with. The two boar are

both in area coe just north ofVewYork City. Boar #1 is the legenaryO.'UVY, a BBS that has been talkingabot phone phreaking an computerhacking for longer than any oter boarthat we can remember. In fact, UVYs mentione on the very first page of

our very frst issue. nd it' alo beenreferre to in Newee, alhough notey accur/y Board# is e entralffice, anoter we knon buetin board for hacker and prea. e'reproud o be affilted h ee boardd e'd e to ak anye ee

interee in runing a 600 ard gonto tee firt o you ca ee ha a boar i a abut.

e'e ated reviu eeboard are compee oe eerca in. o area i o li r"elie uers only. Tere are aea

tinued n pe

FFXEditor and PublisherEric Corley

Ofice ManageBobb Aratt

Cover ArtKen Cpel

Tish Va Iter Koch

Witers: Jon Drake, Paul Estev, Mr. French, EmmanueGoldsin eser Homes, Lx Luhor, Bil from RNOC,

uderman, Bernie S, Mike Saerno, Slent Swtchman, e

Yas, and he usual anonymous bunch.

Prodction: Mike DeVoursneyCartoonists Dan Holder, Mke Marshl.

Reader Jon Kewi i

2(IS.)"\ 074YJ51) is puhiled mon h" 1600 Enterrie Inc Sg: Le. Setauket. NYII!JJ.S'wn"cal1!i()I/aKl'ermil'ndin K a Setauket, e" York.

I'OS"MATER: Sd adrss cha t 00 P x 5. iddl 9372

Copyright' X Enerprises c

\ ar Ubscriptio: S ad ad $15 idiidl crtevras $5 idiiu $55 rprBack i"ues aai fr X4. 95, 19X6 at $5 r e 30 r rssADDR AL SlBSCRIPTION CRPND T riti et x 752Mide ad Y 1155F LETTER AND ATL lBMN, WR T 00 ditrl Dp x ddla Y 115 c Ln: 51651S (SY): 145BS RA ('ICE) 14-4lJSF\I RESS 6dssPARPA RSS: phr!ss O

November. 8 Pale3


4/24

KG B'by ex uthor

nd The egio HackersIntrduction

IBM mainframe computers make up over 5rcnt of h manres used oday n hUntd Sta These systems ar radtonallsd n ndrs sch as nsrance, bnkng,nvrte and so on. For ome reason, IBym a a whol hav no been vry poplrh har hi may b du o h omplexyf h oprang ym n on B ysomad o ohers ch a UNIX or VMAnohr (COn ay b ha hr i mh var y shop o hop IBM mocommnly and csomizd to i inlvdu copa on' eed d h la f or comnds fles progas

oHer pd ak iul t em a n type f ecf! cumna ion h la o d oH aso r h har bl a He\M/CMS Oprig Sys is by a th s a1dealy lad of h IBM sysms. Bu Opro Opra g m li UNX VMM ICMS s brom an hrr o la

ABf I a o r h l I

wi th BM sc acys Wl an so o J yo a fnd vaio BM es, Ist a ug the aCe. I ou ko,y wl1a o o m m e jus bak ls

'M/S Vua Machne/Stem odP r ogS ooa oog SyseP eoan ponVSE a Soage xendS pe Vu SogeS me Sh on

J Job Ey mI usoe Infaon ono Syse Vua Soage As Mehod cmmc MetX: tati cutvPL: tial Pram LoVP: Istallatio eifati PogRSCS: Rmt Splin mmc SubstDSD: Drct e Strae Dice

9 6((

R: nvironmental ecoig itig ad rintinSN: Systes eork ArchicteNCCF: eork Commnitios Cotrol FacilityR X: Restuctured teded xecter gage: Voe Tabe oetsD: Disay erator onl SstemJC: Job Cotrl gagCF: dd Commitis FutioSQ/DS: Structred Qery anguage/ta SstemDBA Data dministatoGCS: Gu Cntl SstemSC Sytem Contrl PrgramP ld Dvlpment PraA onon N Apon

PO gle Opeto aPSW Pogra u dSSP Sube vce ono PoIPS Inea Pbe ono SyseS Diuous Shaed SeF Va Maie uncns aO rst In ist tLO st In rst utAP Ae P

MP Mlti-PerR/D Rd/nlR/W: RdWt

Lin InTYPially , wn yo O ao a sy eo (I MS w sdVM370 ONLNE

smwha o on rdi o ao y f VMMS sys raly au sye b o h rr X ss an h 30XX i

pod ' . romp s te rs wa offYg ha e de cOlnec td o V/M systm, a ro the "VM37 msag whh sly rnd fso hol no b of P-10 ssm Wih alo om o N on wll

ne one e foowng omnds

LOON rd (xampe: LGON VMUS 1

DL urid (xample: DI VMUSR2


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VM/CMSG ri ege ale: SG VMSEGOOO MONING)OGOFF

T mn m vry rom system to sytem

n c t m m a n a g ers m a y op t t o om tcommand rom t men o r add oters Wenack ng a system t s menu w l l appear beoreo can attempt to logn tus becomng verytedos nd tm consumng especally at 3bad as you ave to wat an etety for eacl gon a ttemp t ."Cp

g V M / C ub

ter rsponses ater connect ng ar eadyt H o r brk ky to begn sesson" and nvl d Swtc Caracter" . Te last response sommonl nd on Tlent nd oter pckd ntwors n wc you may av to

c " o / C S tem r TS orn STS ysm. Ter ma be oth B m , r m ot a'la my l v VM' jt G before pt

you v jL 0 -8 cars lengh. :s "\

) .z adc xn) n ay P

ym pmt, [0 ; e

p the s! h whole sstm (n Inosl

caes) . NOI'L would be used when a ystdumps you nto a poram wc a lows you l tt leor no moblty su as a ee oopt o ns ( e a system backup ut ty ad osyou o w tou an ae to CM N L

wl prevn s proram fo run f l sed n you auoa L en wt n drecory s sould aow you aess to esysem tese te progr was sped ton wn your F L E EE w l sto be done upon logon NL s soewasm lar bu no ent al to e o ual N C MM N or Es VVM

f t e a s s w ord S u p p es s on Fa s

nsal led on yste you w l l reve an nval d orat essae weever e ud andpassword are enered o e se l sobvously a securty asue o prevent ersrom ntrng tr pasword n f u l vw oanyone wo may be watc a te pasword sno t masked s ou w l av e to ente yourpaswod on a sarate lne wen te promt ou r t Te advantae o enern e

srd and passwd on one le (epeay at30 bad ) s tat o u can r moe uerds andasswrds n ter ero d o t me wle st l n re te stem ener onfng h an rnvad s

o e ar vaiou rr m

wie gi o you o b c o

d an ( v Th C n vs t acker te. l ag ect e n:ys llg te user en a val


6/24

y from The Dk Jy

001-03 N Hampir 40448 Olama0007 Main 4494 xa Vrmn 46 Mnnta0004 Maachu 445 Ia009 Rd Ind 40 Mr40049 Cnccu 002 rh aa

04 Yr 504 Su Daa Jry 050 braa2 Pnnslvana 095 Kana22220 Maryand Mnana22222 aar 151 Ida222 Vrgn 2 Wn222 W Vrina 2222 r r 2 Mxc224 Nr Carla 5 " Mc242 u rl 22 Arza2522 Gra 0 Ara22 Frd 22

U Frd vada2 Wg da 44 r I 4 lfra2 Mcg 022 fra cn 574 Aaa44 ncy a"a445 9 Wnn D4424 Aaama 4 r Rc4242 i 999 Vrn Iland ss uam,

Sama4242 Arana 02 alrad449 Luaa

ur ar "n r an c cau av rasfrrd fr a r r v dvddfr a cra graca cn. " r rard r v n sud c y , . ar ud y crd ancs and r rvc "rf rlac racg d dvdl r fr sn cran " dfca

Page vember 8 2


7/24

iy !b The NA aster

re you tired of watchig scrambld vidof om H BO a the Movi Chann l, tc? Ad youot wat to watch Dr Gn Scott or Jrry

Fal wl l or any of th othr prachrs? Do youfl your satellite dish is going to wast? Wll,heres sothig fu you can do with it

aditio to riving vido and audiosigals, your satell it dish can b used as awiretapping dic Ys, som of you canactually wiretap from your ow living rooafact you probably didnt know Wirtapping isi l legal, but as te ti tl of his ati cl says, catch

me if you ca I ts virtual ly ipossil to dtctthis particular brand of l istning inA l l you nd for this projct i s your basic ho

telit dish antea, also known as RO oteleiso rciv only What you ed to do isu to th T& satl l it e known as Tl star 31Youl l otic tw Channl 2 and 23 (that i s,Chanl 2 an 22 you l l se a blank scn as ifhe wre a station thr You wont har

ayhig xcpt may an occasioal garbldsoudis s what you do to li stn i on phon cal ls

ae a gral covrag shortwav i vrcoverig btwn AM broadcast bad ad 3mgacycl es Conc th antnna iput of yourshortwav to the vido out terinal on yourtel l i te rcei ver Tun th shortwav rci vr onowr side band (LSB aywhr btwe th

broadcast ba 6 gahrtz ad 7megaert Mae sue your satllit rier isei ther o Canl o You wi l l p ick up morcalls to Haaii, uerto Rico, Alaska, and thCariba tha you ever hought possib le Whoou l hae ramed tr woul d hav n thatmay phoe cals to ist to? About vry 3i o ertz hr i s a pho convrsati o. If you doot ha a phon consatin, ou will ha a

cotiuous ton of 6 hrtz Tu yourreci vr to wer ou bl iv 26 is coi ng inecly, th lsten or a click followd by MFb lu e box tos fo ll owd b a rig Yo u wi l ne a l o ie in o & T cal s o aa o8, 89, a 97

or frequis abov 1 gaht swicho upper sid ad (USB lso you ca tue iCanl 8 of Tels ta 31 It appars that Chanl

8 o your stadar satel l i t rci vr box switchs

to th US Sprint servic o th ainland toawaii Sprint cods can b (and hav bn)gottn succssfully by l istning to th callsIntrsting covsations ar al ovr th plac,such as th a ro Long sland who has two

wivs and was proising th sond wi ovrth phon that sh coud stay in his hous inHawaii un t il h "got ri d o wi nub on

Tlstar 31 can b ound at W on thtl l i t di sh Spacnt 2, which i s locatd at W is al l US Spint Dostic cal ls as wl l asovrsas cals can b onitod.

Othr intrsting satl its a ASC1 at128 W, Wstar 2 at 79 W, and Costar at

76 W O n thse, simply tun acoss unt i l you hit ablank channl that oos its caying as ig a l hn tun th sho tw av r c iv anywhr bn an d 5 ahrtz. f thconrsation dosnt staightn up, switch toLSB o USB on th showav.

TH T V Q%

K

" o nt do Fe"b

Scanr listning ss to hav a cainyst iqu oung phraks ad hacks,p a rt i c u a l y i n r g ad s t o i s t n i n t omo i l/ cord lss/c l l u la phons, and cta i ngovt agcis. Howv, unik obipons whos rquncis ar wll known, thds frquenc is appar to b hi ddn away om

ninued )2 vember8 Pe


8/24

BY STA[ heyve doe t gn. Ths tme,ter repeatedly nd ggesvlypromotng ther 550 tlk lne

nbers (phone numbe begnnng wth 550 tht connect cllers to totl

stnge), New Englnd Telephone hdevsed a pln to block access to thesenmbers ro yr hme

monthly crge. s s suposed tobene ose pple who lseed hert me cled al hose mrs n he versees wng p wth nncredbe b. Now ey'v beengven se o wht nd o ccents"

her phones c ve dor or wr nsrce" sn s nresnble.Where hve we see hs beore? ...Newersey y so hve lkg yeowges. Usng ouh o hesbscrers wll be le cl cmputerz syse ener ur-gnumer, nd en to a recrded

mesge conng heaer evens, sock mke repots nd anythng else yuculd poly wnt. The sevce wll bee t customers. To adverte on t wllcot abot a monh ... .In Annos,arylnd, a mn pleaded guly to

telng long dstance elephone sevceng hs ome cmutr whc the

c

Q Wt ' Bklng Sce?A It" , new HIce for enc cus wl ttb to .!l

' hel h teephe. 0 k lne "k N U t conn 0 cOtn N I t td blln Ih c" k 1M G b DMr

Q ' kng in ffe7 In cplnt t hi u

l cling t line n ili nt N Engleph 0 eC o

H d Blkng Sl 7 Wn CUte ubsc to Blkin l r h

0 telphne nu lng wlh ( h l k ) ill t cpe hlQ Bln ,1Ib1 to n N 11 the PCh wh l nly I

b-k 0 thl. ht kn a t n ' he Xh b tMi .

Q Wat n .ub t im II l 1?

e e' h u . nlm N cm1n h I u URtl b h a 8 clnq. il cl, Melrt CIHeto . )ur . Mrle H, y w 1 bto _ ,clngtunltnreM

H mh d Blking e ? thy a 0 dI'ar o Bkng t )

I yu uk lik oer S Blkng SI o I le m . pi wthin ChUH N H I F he lo a r Engw "a M o

Pge 8 vember 8

judge rdered etroyed. An nellgentman....Whle MI an U prnt aetryng to grow nd recover o herloses, AT&T ryg her be oknock the ou. AT& hs sed

new progrm or OCOT usomerOwned on Operaed Telephone)copes. The contrct r thrgrm nsss h pyhonecompaes roue ll her log dstnce rc rough AT& The compnesreceve btween 3 nd 17 percetcosson dependng on how uchlong dsnce uage there s. e

nrc lso sae a e pescno process Vs or Msercrd cll(mny Os now hve a mgnetc crd reder nstaled nd ges on to y a xxx cas are o alowed uless he pyphone r re4ures hemn h ste. A resng oe: n NewYrk tte the only rles governngOOs re hey must ve ree 91sevce; y must gve ree locldrecry sssnce or hve phonebok nerby ( book n te smebuldg couns!; and ny 3 ethe

on r round he phons here mut numbr r sevce or complnts.... Ms exdng nternatnl DrecDlng. As etember 15 srel w's h drct d counry. hey wll

ese e4pmen ro & to clttelng dnce sevce o noher contres .... US prnt now provdesccess o over cuntres whle only bout 20 e dlble wt a ON cad(Srns cllg card evce). The et ohe countre re only dlble wth +sevce. Among th countres ntdlle by cllng cd are Agentn, hle, omncan Repblc, HongKong, nd Tawn. As o Novem 7,US Sprnt uspene ntenatnl callto he Doncan Rplc om rea codes 212 an 35. U pnt ay byhe end o the yer hy should handleover countres .... MCI wll oroperto sevce n hacuoers cn se clng cs om


9/24

rory phone. One ha i esabishedhey wi aso offer coec a, roubeistane, and oher operator ervice.US Sprin h provided operaor evice

for a good whie now Ju dia -332-0777 or for you eul aces nuts 03330

107770 i now einct)....Whie bothMI and U Sprint are oering 800

service neiher provide 00 directoryasisne Tke 004-9999, an MCI00 number owned by Mr. FieldCookiewe caled MCI and akedhem if hey had he number forMs. ield. They od u rather matter

of acy ha he number for800

dreory asiane i 8-555-11. Weried o epain ha t number wa forA&T number, bu were iencedwih a ik. When we caed8-55- w ed he woman whonswered A& 0 nformaion," ifhe had he number for Mrs. Fiedooes. She sid here wa no iing. Is goes show if you're going o ge

n MI number, yu have oadverise or ese o one wi ee cayu . Wih US Sprin's ongoingdveriing nonene about hearing a pindrop over he word's ony fiber opticnework hey negec o menion thayo n aso her one drop on everyong disance mpny AT&T, MCI,An, I, eern Union oh

we mos every ompany) In isng qe o ve

soon when u call your acce numberfor the 7 digit home coe yo wilhear a reording giing you a ewnmer Thi ay ha alreay comeThere goe the at it of pritleft in U prit oo tey

eling tir old etwork eillutraion).. outer Bll a a weice for Floria rit wo traelCalle The Right ouc evic", tiprogram allow cutomr to ionctand reconect their telho ice iaa touch tone pone From wr ite coutry you a cll86-620 toreceive a ri of intratie rcorig

Cer are akd to ntr tir tlephonumer wi mt e i r o305, 813, or 0. Thy are tprompte for a peroal ac cod

Thi -igit PI number not te aling car PI wa maile to cutomerrecenty When thi sice wa

(ntinued n net pg

cc r

t f. Ea t plet Bu w GTS m S S'sx wnh w o g t. u r gfm a F C f

t

uw

be

w a y e

Nwork orignay schedued o be ;oped by June 7 97, US Sprin :hs sen o oes o old GTE Sprin(777) uomer The 9 digi ode .= ' lly t which ared u a 7 digit pu a 2 llydii rave ode were repaed y a 7 "bdigi code which cn ony be used from

yur home own Even hee ew ode


10/24

th tm nfintroduced a w month ago, utomrshd 3-digt PINS. It's qut possibl thtthos frst IN's wre actully th"ccount cods, thos thr ubrstht follow te tlphon numbr on thhone ll With this srvic, thr is no

fe to tur off yur phon lin, but thris 5 chrge t turn it bck onRight Touch is vilble hour yan s th pcity to hnl allrsiltnouy Whil it may e a handycovninc w wlt srr ift rvi t mr au ta Cnirng ut e inFi t Bll ay h ue

me rt r to ai t1'1\ tr iig th tr nt l o '1: tht yn in ti t t i a ll a Bna .\laKa:i' port that thri irt tart h gve 5-555- hi r I gav 999 as my Atgly it wk h ic

thnk g t akqustins i th t yt habeen pgram nt to act 55595,97,an thers as lid xcngsOn iilr t ustomr f outhCentl Bll cn l -57-7, tllfre mr acbl nly t ocalcllr t t illing infmtioninnt rconnect sic rrnge

for payment, or duplct opy ofthir phon ill or custm linerics all without hvng to dl withth busness offc (Wht is lft for thusinss fice to l Most lkly,colint bout this nw rvic)out Cntrl ll trt this srvc on tril bss n erly ptmr wth ustomers in Kntucky... n

finlly, w'v discovr mlouslittle gm yu cn ply with prntrersenttvs. f you cll 5 99thy'll nswr wth th follownggreting: Thnk you for clling Uprnt. y plcng you orr tdy, youwll enjy th erst sounn longdistnc clls vr. My nm s [n]

Pae 10 veme 187 2

(cotnued/rpr,os pae)

Hw my I hl you? his is ne o thelogt greting w'e ver hard ndweve m n mzng dscvrynernin it. If you hit a tuch t inth e the greting, thrersnttiv o te othr en

utomtly jups to th woll It\ just lik n intrctivtr! ry t toy.

(Jtuedfro !ae the systems where credit card nmbers, I coes, or passords are beingte. Bt we refse to pt restrictionson sers rvte mail. A bove a else,

rvte mal st remain prvte Fventhe system operator has no idea what isn each ses private milbox-thatsth only far wy to rn a system Ofose t qte possle tht someoewsn rt code to someone eletrogh the mail. Or an obscene word.Or a poem. We do not takeesponsbty for the ontents of prvte

mal. And neither does the post office.Both boards are silar in format.There are a seres of room: to .Some of the are obvious, soe aytake a little guesswork. Yo can chothe rooms you want to be a part f oreven reate rooms. ntry is notrestrcte or monitored, bt yo do haeto know the ne of the roo yore

enterin. (his i not hard iforationto come by, either throu uess raki around.) iles are also stored isoe of te roos. ese are easy tolok at and downad.

There is plent of online heaaie r ues. n sou you uinto a prem f srt, s a

feedack ca u a (516 7512600

ery 2600 boad w a ea rusers t ae u dk. tof tes bd a 20 . Ycan use tis eatue t cunicate ioter sscribers, er riticism, praie,a sestions. f cour, you can ado this ivtely b sedi us a

es yses ae cete t ad fu of inti d

ce


11/24

_rr " , j' J

Date:

I: Acount___

recen eviw of yo cco idic b ch u h hizo cod

t h ct, h chld o ho od a s

O Co Nw Cd

! hl n d o o po.o ffcv

yo . f c p cc h a r y chl ' f il h c Io retu w . h o nlon prm h b d

n q ou cco ea

S

oc 445555R 44

M or eo

WHY DO TESE LETTRS ALWYS LK LL ? additio to their iaby to pell "commecial, MC esn' sem l t keou ew de w Whe w caled t d out y te fiendly epsnttiv told ushat ee idaty ma day most cae I adn to pvidig da aeatie ow pides ogc altetive. Mle S Spll ha otte aoud o tkig aay hat $ outndig balc smeoeacd up ur accout Jut igor t tey ep yg Tht ug t eiopoa oa O ou at coeato, hey od us at we actualy ad a $b a ew moth ago which they ee set u ice it seeme uusul. Ad so t oes

26 Novembr,187 Page 1 1


12/24

HY NODouble BeepersDear 2600:

R e c e n t l y y o u m e n t i o n b e e p e rcompan ies no t yet being ra ie by the

pol i ce fr phone nu mbers . They on 'have to rai the m Accor in g to a fr i end

who runs a l arge beeper company, the

au thorit ies can, wit a warran t lega l ly

obta i n u pl icate beeper num bes Anyccess to te monitoe number alsobeeps te uplicate numbe in te

police station

Bob from Los Angeles

How clever. So nw we have beepertapping Bu will the beeper companes be as cooperative with the authoritiesas the phone compaies?

Why No Boxing?Dear 2600:

Apple HackingDear 2600

I toug ht some of you eaers mig t

in tereste i n the fol lowing

Does your school have a bunch ofApples hooked up to a Coris? Well, ifthey o, th is is for you .

I f you wan t a l l te acounts an

passwors al l you ave to o is fol low

tee sim pl i nstruct ions ist en i t

prompts you for you r s i mpl y it ctr l

reset a few times. You soul nowae an Applesoft Basic pompt. Now

type in tis oe l ine pogram: O R =6 TO :RI TCHRK(I;:NX I

o t you ae t at type i n, RU

it he progm s hou l ump a l l o the

p a s s w o s o n t o t e s c r e e n . U s e r

n a m e s a r e u s u a l l y t w o t o o u rcharactes long asswos are wo

charactes long Also isregard anypunctuation following a passwo.

Lets say you a som output tatlooke l ike th is . . YIX 3. . .

Te "" a n " wou l be use r 's

t h a t r e q u i r e n o p a s s w o r s T h e

"YIX" woul be user i "TYI",

passwo "XX" "3" woul be te

same as " an "".

In the co u rse of to yea s o te le com,

I v e r e a c o u n t l e s s G i l e s w i c e s c r i b e t h e ( v i r t u a l sp e ct u m o f

"boxes" Yetfew fi les I ve encountere

give c lear explanation as to whyb ox i n g is i m p o s s i b l e i n e l e ct r o n i c

s w i tc h i n g of i c e s Wo u l y o u m i n e x p l a i n i n g C o m m o n C a n e l

Interoffice Signal ing (CCIS, an ust

how an electronic ofice "pevents"

boxing ? Than ks at te basics o Hacking CorisFanken Gibe C o n s te l l a t i o n Un t i l n e x t t i m e a v e

Txa

Put quite simply, its imossibe touse blue bx in an electronicswitchin oce under CCI becausete eqiaent of the bue box tonestt a hone hreak woud send are

transmie oer a cometey direntie ic yo o't have access tothese ies, be boxin no oerwrks This is so ed ot-ofbsi i F or more t orohissio refer o ae of the 1 otion avaibe froms for Pag 1 vmbr, 87 6

phu n and hack on .

The Rifter

More How- To ArticlesDear 2600:

I t 's been awhi le s ince I 'e seen an

ar ic le on boxing . Why don' you r u a o w to a r t i c l e o n e t h a t a d r e s s e s

internat ioal ca l l ig procedures? I 'm

su re you have the capab i l i ty of comi n

up with a very informative art ic le o

h is s ubject, and man y readers wou ld

appreciate it .

aua Raa


13/24

WIT U A ?Wh w ha a nmb of howto

atcs that w' bsh n th as, w' b hay to nt any nwnfomaton, ncn nw boxs,can tchnq, tc Intaton

can an bos a at th to ofou "want st

A New SouceDear 2600:

I u s t f o u n a g r e a t s o u r c e f o r

information on news about securiyan suc l ike I t 's i a qu arter ly journa l

cal le AC SIGOF, wic is te"special interest/software" group of

t e A s s o c i a t i o f o r C o m p u t i n g

ac i nery e ar ic les with i n conta ina l o t o f i n t e e si n g i s s u e s a b o u tsecurity a on, an many are a lsoa m u s i n g .

Reaing these articles makes me

realize how muc I miss the news

cl u m n of y o u r a g a z i n e . T h o u g h

some preaks and hackers feel this

stuff i s u st fl ff a wou ld rather see

technical iagram in i s place, I felt i

was the best part o the jour na l . I en joy

r e a i n g a b o u V M S t r i c k s t o g r a bpasswors, bu I a lso want o know

about whats hapening in he worl

outthere (other tha n he laest hreakarrest. Vandalphreaks cause some

amage, but I a lso f ind i t en l ig hten ing to rea iems l ike "The FBI estimates

the a era ge theft loss from computerfra us at $6, [er f rau d], as o n

page 3 of th is Ju ly's ACM SI GSO FT

Y o u m i g h w a o m e n i o n h e

existence of th is resou rce as I sus ec thre are quie a few of us wil and

weir news junkies st i l l ou there in

subscr iber lanE.

W st ha a nws comn It'scad Th Tcom Infom an tcombns a ns of nwswothytms nto on o, amb tc

W' ty o co as many ntstnoccncs as w can fo ft

tons Fo as ntst sbscn to ACM IGOFT, wt tot h Assoc a t on fo Com t n

Machn Inc (CM) ot Oc o111 Chch tt taton NwYok Y 1 Lt s kow hat yofn ot

Pe RestersDr 2600

As I saed in a prevous eer, my

R a d i o S h a c k p e n r e g i s e r o e s n recor numbers when I use a cordess

phone (Phonemae)

I would be ineresig o know he

make of he pen regiser and ordless h o n e h a Wo r r i e d a d p se i nAri o a uses tha does reg iser phone

n u m b e r s ( S e p e m e r 1 9 8 7 e t e r s

age)

bUqu ProjetsDr 26

No one maes he fo owig for theApe

1 A comnaon seech generaor,cock, pier ffer ad coy car

aye eve some ROM mem ory2 A 10, 3 12 2 a ud

modem wih European ad Aerica

ones for 110 and aud, ao d i a l

3 A card for i nerfaci g a n Appe oa mos an y h a r d s A o eeded is away aroud he Proo m of 2 2-

meg d ss per s o

4 A coprocessoracceeraor cardtha h as a l h ree ao ocessor o

one car FAS 502 Z-80 a d 68

p u s 64K ram

Any aers?

Nix

(ntinued n pge )2 vember. 8 Pae 3


14/24

4 9

GRAPHDFEATS-2o

aYah r r,'eve e totln escies n ck etawhat pygp re thei i ues,tyes of tests and questio, cede,ori meth\ vidit relality,and technical esign cto. Heayhi on every kown countermeueci

tok}f

oand e nnocen" nd "gt roe to tpcl questOns

-S2/Y The ctober 19 e eproves that ECONOMC COLLAPE ISikel and oo! Are o prepred O it?r for Wr rrorst Ats RebelnVkS6r,btr hOa' J:Mde ad Ntrl Diters? For twoyears, we pbhed the popar, tmateechnolo rvval ewletter EBELURVV: :sizzli nd rck-fsted - includes compute coication eectonic hone

sZ\ Ande Z d

wn o nd D e in urn,suurn ura an widerne aea.Chock fof hartfid suvivl infonclude nholdsrred edtorial adtces W nee ny oe suscrbes,fetue is inftion ontibutosiciuPulish tly 20/y did$/y Cporti 3/ack iueHj

VORTEXGENERATOR-BHeatcoo with impe Amzng -Port

pofeiuesloOvg&:,6acrtAdcentficy ond. Pacticl. Pls

STOPPINGPOWEMETERS"l0u llme est eller Describe hoelectric meters work wh aeJE ENAL LOAD ME Y.IRON GON ADSlo

most controvesil and elcit elec-tieluimeto slow down even stop powr eters

LIERATEGAS & WATER-sescribes a siple meth ig a co ;ettr rs-

SECRE &EAIII

teta te tOk tinng secret ad aternate D o havethe legal rght to have a may s thatYvns ni kOO% ho (ad OO le) pssps!

Ea tO1r hn(ltis'rf'praret o dia d hoQa

[t ;,nO:naz airburnhp t ca rsotwre ad vd a or

CONSUMERTONIC 2011 CESCNT D P.O. DRAWER 537

LAMGRO NM 8810

6


15/24

NE &OEMANUA15Types, Descriton. Secs nd 1+ ntrfaces (Parfll S Detq ns

o Xwtce, Be d Se nd leeJ BeoDevcs Re intin My AUse nd Seice T Figes

SUE

KGMEHOs

R-nk oth Ribbons fo out nd 1tes each P fr (hpoMotoDven R- Com [!O Ink (5 oos) nd ie escbed

***************

ASS RANSTEROR7Wied b Ai ry? BsHse Siins R 'ott,Fh #847 host!Jtated: }i;'te?b itewe1{


16/24

E L ogon unucul-incorrBct ord s has j ust bee stated, a va l d userid has b eteredbut the password was icorrt asswors ca e from 1-8 characters log but may cas the miimum legth s chaged to be at least

three charcters There is o differece betw

upper ad lower case l etters for e ther the userid' or password as th ey are coveted to upper ca by the system Th is i s aother secur ty flaw as t

educes password possbltiesPaord incorrt-rBinitia loon rur

Ths is the message reived o the oldevesos of VM/CMS wich meas the samethg as the above message

Maximum aord aBmpt Bx t aga inlatr The threshold has b reached for useridad/or password attempts ou w l l rece ve thismessage every tme you attpt to logo afterexceedg the threshol d ut l a varable perod oftme (probably from oe to five miutes haselapsed This l ocs out users who attpt tologi to the system from that part c ul ar l e I ot sure whether this s recorded aywhere orwhether t s set to the syst cosole It's a

good dea to deteme how may attptsormally trgger ths ad p just shot of t

Alrady gg n Ths message wl l appearwhe you attempt to logo with a valid useda passwod ad that userd s a lready ole l e other systems VM/CMS wl l ot al lowte same usei to be l gge me tha ce

Urid miing r invli d s t mplies othgwas typed ate eteg the LOON commad

the omat for the user was ot cot eusg a umer as te f irst caracer o r a cotrolcharacter used somewhere the serd feld

Error in P dirBct he C dtor s theai ser d rectory for the system Etes theectory cota the userd a passwor VMI O cofigu ato d s usage values assocatedtual a eal aresses prvlege classes tual processor sze ad oter opti os fo each

user Wthout the prper decto etry a urcaot l ogo to the syst ad w thereforecee ths erro message

mand not vli or logon Ts occushe yo eter ayth g oth e t ha t hecmmads l sted i th e meu i e eterg O N E H E w l l et u r t h s m es sa ge e e though NH s't a al i commaWhy ths s do't ow So ot get all excte

ae 1 vembe, 197 6

th g you foud a vali d commad but coul d'texecute t sce you weret logged o

AountBy costatly complig userds from various

systems you shoul d be able to col l ect a ice l istof accouts which may eable you to ga access

to a sysem The fol lo ig re a few whic h I havefou

OPERATORCMSATCHATO O 1OPERATNSVMTESTVMTI

MAINT

SMARTAMEREPRSCSCMSSNA

s usual use the useame as the password Thgs stll havet chaged from the HacigVVS seres people ae just as stupd asthey were a few years ago

Thee are may default accouts whch havethe passwords lsted i some IB systmauals Tese are hard to ota ad are very

powerfu l s ce some passwords are rare lychaged I f you ca get access t o the defaul ts i tw l l greatly expad your co ll ect io of systsIguarat t

DialIL s used to logcal ly coect l es

whether they be sw tched (regula dal -up phoelies leased (dedcated or logcally attached(dectly coted to a prevously logge o

multple-access system The IL commad isthe oly sbsttte fo the lgo commad Osystems ug mre tha oe operat gsystem IL s used to coect the user to oeo those systes It s rather commo to f d twoor moe operatg systs ug parallel oude oe aother This s qu te f feret frommost other systems whch ru aloe themace Oe mache oe operatg syst

but ot BM The a l ty to ve mul ti ple systsrug s mu ltaeous ly a sti l l provde the urw th the l l usio of t beg a sigl e syst (thewhole dea behd mu lt - tasig computes s tprovde each user wth the ull resources of themac ie so quc kly that t appears that he or sheis the oly oe usig the syst sets I BM apatfrm most other computer maufacturers Someo the systs whch ru o I B 's are V M/ CM S

VS/TSO OSVSE OSVS1 Some thers


17/24

a MUSIC JES and IX/30 which is IBMsvsion of U N I X that uns und VM /S .

t is a lways good to know what oth systsa ing and if you a unale to gai accsto th "piay syst you ay b abl to ain

accss to on of th "sconday systs by uf DIAL So syts wil l qui you tocify a l i n num fo ci n systs Othswil l find a l in fo yo if on is not spcifidasuming th a so alloatd to thtouc Usids a also dialabl n socass you ha to dia t houh a pati ul a usidin od to gain accs to cain systs ofo ctain coands . A typica l loon to a

A yt may look lik

. DAL MUSC

DIALED O MUSIC 00

*Millau Cuer i MUSC/SP 1 1SN ON.

.RES

DROP FROM MUSC 040

/370

Whn it cos to finding a vlid lin nubfo ysts tha can b achd via D A L youcould in fo so toubl. t syst

quis a lin nu to b ntd (unlik thabov xapl w lin 040 was foundautoatical ly) you wi l l not only hv to co upith a dind l in nub but on that isassociatd wi th th yst you a attpt in toacc Uually yo can find this infoationaft loin onto th M/CMS syst invaious f i ls but i f you cnnot t in ou wi l lhav to squntial ly nt l in nubs. So

that av sn a 00 0 B 4 A 040. VM / CM S syst dos not pp to l ii tth nu of D IA L attpts u cn ku n l i k L O O N a t t p t s P o a i n y o u ico to sach fo a vlid lin nub to asyst shold wo with no pobl.

To dop th diald contion just typRES

rror ene no ae on ' Eith th

a no I i ns al l oatd to t syst o ou ustnt a cot lin nub.

d de ' . You hvntd a vali d syst o usid d l in nubbut t dvi you a (t tinal) sinvl id . n t his as G (Gis) dsyst onsol o 32 tl y b thonly valid dv.

'urd no oggd on. DAL dnot b xut ulss th us (o sst)spifid is lod on.

'l n# doe no ex. A vl id usid /syst hs

bn t but th l in nub fo ttusid /syst s not vli d .e

MSG is usd to sd ss to uss whoa cutly ld on. his ond an bissud bfo ( i ifid b th l oon nu ) adaft loin i n.

OROR e I rd O.

his will snd sa to t pisyst oto of t syst. t is onl yon LA SS A us ol t ss wil l bt to is til

M

This wil l snd a s to youlf. is susul fo idntifyin t ut usd o abndond tinal.

oTh LOG O F cond b bbvitd s

LO. Aft lon of o wl l v thfol lowin

ONNEC :33:54 VIRCPU 00:.28OTCPU= 000 76

OOFF A 1 7 :0544 ES HUSDY/1/8

CO N N C is th tul lk t u sntwhi l on th syst. I P s t vil Pti tht ws u P s t totl Pt both vi tul d od tt .

LD od l l ol d t to

x 7 7


18/24

P Y W V / ; al lowig you to re Iogo aga i without hav ing to Shows urs hw many il id r ampts hae rdial he sys urr n tir urid Incr file curity LO HOLD ri

Th ere a re va iou s w ea es s es w i h i VMMS both iemal ly ad eemal ly whih a b e ep lo i t ed Fo h i s rea s o va i ou s. sofware seuriy paages have b wrie= ere would ot be a ned for hese i mos ases

if e people i harge of sysem suriy ewwa tey wee doig Ayhow ese pacagesdo p rov ide dded s eu r i y w h e p rop er lyimplmeed. The most ommoly foud are

VM S EU R E ad AF2 TP SE R E ad RAFae ohers w i h ae les s ommo These

Lgd nAfer loggig o you may reeive somehi

simi lar o he fol lowig

OASD 1 90 LINKED R/O; RW Y A NT; R/ Y030 USERS

LDMS 1 0:40:25 EST FRAY 0522/87WELCOME TO MISCELNEOUS COMPUTE

SERVICES SYSTE WILL E DOWN FROM 1 0:00 TO 1 0:30

EST SDAY MAY 24, 1 87

paages are easily ideif i Lon at 1 3:22 :59 EST FRI AY 052287Afer eer ig a val id use id VMSURE VM/SP REL 4 0420/86 1 1 :33

rspods wi th

VMXAC I D4 Enr lon rd:* * * * * * * * * * * * * * * * * * *

HHHHHHHHHHHHHHHHHHHHHHHHHH

SSSSSSSSSSSSSSSSSSSSSSSSS

e way o posiivly ideify he us ofVMSEUR is by us ig i as a userid I f i isi g i wi l l be a val id userid , ad who ows,you may eve ha e password

Afer eerig a bad passwod , A F ( Aeorol Fail ity espods with

ACF1 1 2 PASSOD OT MATCHEDACV0044 A E ASSWOD

* * * * * * * *

HHHHHHHHHHHHHHHHHHHHHSSSSSSSSSSSSSSSSSSSSSSSSS

Thee paages provide ifoatio whih be iee wihin the operaig sysemiself . Pehaps ewer vers ios of MS wi l loai em Some o f hese feaues ae

ogon ate/tiPord expirtinRues or r ectionInvidting urid for invlid ord amptsInvlidating rmils invli r amts

ge 1 8 vembe, 1987 6

R; T=0101 1 :23: 10

Line # This l i e shows hat the di sk a vi rual

address 90 is l ied wi R acess by youRW by userid MA NT ad R by aoer 30urs

Line #2 This shows ha e logo messagewas reated a 0 4 0 o F iday ie #3 Tisis t he message tha i s show to a l l users of hesys upo l oggi g o Some systems may othave oe

Lie #8 : The acual t ime of logo is pried

L ie #9 : The urre E EAS E of VM S P adthe ime ad dae i was isal led i s show ie # 0 : This is he eady message ad it is

pri ed afe ever ommad i s perfoed were R=eadyis idiaes ha e sys isready f r i pu . T Timete f i st sries ofumbes ells ow log i oo he sysem operfor the l as as Te eod se of umbesgives he ime of day f u do reive e

rady message you ae i P ad mus PL M Si ode o issue M ommads. ie # The sys pompyou a ow

eer ommds Prii C

As wit mos oher opeai g syems a usemus have suff i ie p iv i leges oder oeue rai commads Ever P ommadbelogs o oe of eigh M defied privi ege

lases The P direoy defies whi uses


19/24

2marketplceANTE Any aker and phreakersofware fo IB oma bl e and H ayesompa b l e moem. I f you are sel ing or

know anyone wo s, send reples oark H . , P O Box 7052, Por ron, MI307052.F O R S A LE : O k d a a M i r o l i n e 9 2personal pr iner . In ludes manual for n s r u i o n s . a r d l y u s e d . M a k e a ofer and 's reasonable, I wi l l payposage M a Kel y, 30 Isbel l , owell , 43.

SUMMERCON omn g o NYC.W s sae for more i nfoTA BACK ISSUES. Coplee se,o # o a n i n u d n g vo l # , n l u n s m s a n sp e a lreors. Cops n good o exellenon o n . $50 00, no eks, i n l udesosage T Genese, 219 N 7 Ave.,M Vernon, N 0550.

OCUMENTATION on el eroni adgia swing sysems and PsW l l i n g o p u r a s e / r a d e A l s olookng for or parapheral ia s asBel l Sysem Praies. rie o l , /o26, PO. Box 752C, Mdde Isad,NY 953.BLUE BOXIN ? Le's exhage infoon pone numbers, pars, an eWrie o Blue ox, PO ox 1173,B u l nga me, A 9401, Aeno n D . C .FO R SALE 803 m i purpose oegeneraor ps, pr ime qa l i y $7 .50e a pp d . I n l u d e s o m p r e e s v ea p p l a o n s d a a Two h i p s w i l generae any dual one orma. Tesear no loger in prodio Ge 'ewhile ey las Brue, P.O Box 888,S nson Be a , CA 94970.

O SLE: ado Sak CPA-1e egiser. Js l ike new $70.J . C D e v e n d o r f , 29261 k h e n ,Lag a N ig el , CA 9277 - 68

FOR SAL Ex-e b bxes, od adsyl s, may ve work! Also a wderange of o ld Be l cos eipe

Call (514) 28-6731 ad ask for cfor deai ls O O HVE od dad copee q p e l y i r o d a h dus hy o do o 2g r ow i n g b l e i b o d w o Sppor freedo o seh i o m e ! Coa 26 a (5 16) 751-2600or wrie 2600, PO Bo 752, Mdde

Is la nd, NY 1953F O R S A L E STP C Model CT-82i ne igen v deo eri a l Copee y r o g r a m a b e ( 1 5 0 s e p a r a efunions), S-232C & para l l pr erpors, fu l ASCII keyboar w/csoor ol pad, 9 P-31 CT w712 doa rxp o 92 c capab i , 32baud raes o 38,4h more

E x e l l e c o d i i n w h doceaio ri i $8, s or $125 o bs or e ie S pide ,44 . Eag le d , S ie 08, ao,PA 19083 EEING. Fid o 5-8pm a e Ci orp Ceer he Mrke( obby whe re he ab es a e)153 Eas53rd Sree, New Yok Ci Come by,drop of r i es, ask sios Ca 516-751-26 o oe ioGO OM EHI NG O EL? ifor someh i ng o buy Or rad Ths she place! The 26 arkpc sf r e e o s b s r b e s J s s d whaeve yo a sy (whoak i o o) ad we p !Only p p, bsisrs 2600 rce, P 9, idd sa, 119 o ar D r Dr

2 97 9


20/24

H A C K I N G I N T O B M ' S cn use which lasses of ommands. Eah use: has one o moe pivilege lasses, as does each C P ommand If you ty to issue a ommand that does not math the assig ned piv i lege cl ass of the useid you ae usin g , the system w i l l no t poess the ommand As fa as I now, no eods of attpts to use pi vi leged ommands ae ept Hee is a undown of lasses A though H Primary System Oratr The lass A use has the abil ity to contol the system Any use who

uses te VMSP system onsole possesses thisp i v i l e g e l a s s T h i s u s e a n b o a d a s tmessages, ontol system aounting and issuecommands whih affet the oveal l pefoaneof the system

Systm Oratr The lass B use hasthe abi l i ty to ontol al the eal esoues of thesystem, eept those ontoled by the spoolingand pimay system opeatos

Systm Pramr Class C uses an modifyeal stoage as opposd to viual stoage

Spling Oratr The lass D use ontolsspool ing data i es .

ystm Aalys ( C l a s s E M o n i t o s a n d

intepets system peoane dtai rei (ass F Ths lss ua l y g vn to aconts tht I B i d Svesonnel u for upda tes n fo r d iagnos ngyt pems

as Hl motplominet o ystem. Th fn n ; s d ; v u , c

AY: The ny c o v o C P w ; n u coms l o LO\1 Lo

eerve{j for B D h id ua d

ass n t s e a to t q p n Ty hlown he d i rec to as - Z d

o yp ic p ilege sses o e;n I Cs o RTR F ERP , B E G ( )P E RA N S I C ! B . [ E F , G o

' , 1 3 ;

p . c [ " I h : ' ; 1

' "

alphanume symbol of up to 8 haates.Orans Tese speify the infomation on

whih the system opetes when it pefos aommand funtion.

Optins These eywods ae used to ontolthe eecution of a ommand When used, they

must be peceded by a left paentheses, but alosing one is not neessay

Diffeent ommands ae used within diffeentenv i onments To see whi h nvi onment you aein s i mply hi t etum at the peiod pompt You wi l eeive one of the fo l lowing CM S, C P, XED IT .

Thee ae many ommands that ae useful toboth egu a system uses an d haes H E P isavai lable on some systems, pat icula ly on

unves ity systems It is extensive but nt asc lea as UN I X o VMS Th is i s typ ica l of I B M .Neveheless H E P is usefu l and you should gethadopies of as mny ommands as you an.AI s anothe fo f H E P whic h may be usefuto n leaming moe about the system

ne n i e featue of CM S H E P is that whenyou eeive an eo message you can

HEP SOOO r OOO

he OOOOOO o OOJOO s t roag yo a T syst w i tx n wat t w y it peed d ow yun et i

! O ing o o o x n n ted k t Sf ( s h he o o ows ssu any P w h i b prcluding e h CP

y ow ou to obta o b t oj

ys f c od by s H E L P .

o ioat Q R cadso aker is NAMES

OPERATR-l F, MRT[C CMSf349- LGOO I 80B3 1\SM - V

5C_TP l WfZ , ! l TP ! iWH4IPH1ATNS,- l WFY: / ] 4 8


21/24


22/24

LERSCdjo J)

!Der :

Ca n yu te l l me a nesl ette

s m la t yu s a l le s st l l be ng u b l s e a n s a t s e aess?

D . .

New York

no longer exists, although backisues ae being sold by different

peope (check the Marketplace)As far as we know

is unique in

subject matter and approach although

t h e r e a r e o m e o t h e r h a c k i n g

publication-ome good ome ba

Look for reviews in future issues.

I lst moth 's lettes colum, ede told us tht the chipused i ou blue box schematics o oge vilble Sevel

edes hve otified us t climoteise. We udestd te cip isobtibe though Jeco Electics i Clifoi sk yelectoics stoe fo thei umbe t cost of oud

listening in

pryg ears probabl y for resos of ecr ty Te%tru th s that fed frequec es are as el l kno sreular frequences A compay called CRB eearch , kon for publ cat ons on surve lac ad eltrocs has a book called Te op> Secret' Regst o U.S. Govemet Rado requeces" by Tm Ke te Th s book contas the freueces, calsgs, ad rado codes of every US Govemet Agecy exstece

clud suc ageces as th B , C A D EA ,and of patclar terest to phreaks the SretSerc e Earler ed tos of th s g de ere boudc om p u er ha rdc op y t h very t h l p edteher d soed by frquecy Ts made forsetg ch as dffclt to read adff cl to se Hoever, t st l l remaed thede-facto scaer g d to the feds an s verypopular

a vmb, 197 6

he cnty pl s (1987) xt dt ns e nt t ty robl s, n sdded or onfreqenc nfrmn cmaks for a xclent caton. nsde t8 x 1 1 1 9 2 a ge b o , r s a nlabtc st ng f th vaos gencesrt v n th k n tt gency l s n g s v ded nto st ons contangf r e q e n c y / f e q e n c y s e , t r an s m t t e rloctons/clsgns, n, hen avalale tvs cds nd sag ed y e prtcrgeny (Rhde l arrv at Csd rathertan Pvot .) A art clary terstng sto o n n t s t n g s f o r t U S . S c r tS v c A g t f r qen / r q n c nme/rqncy s t as l s t t n n g t o n es s r t h esdnt a stf rst fam l s and other relted

oon. y ko Ay Crscdename as Dynamo?

e p Secret Regst s an xceent ooknd s ghly recommended reang for those trested n l stenng t tos ho snng It 's v labe for $1695 om CRBrc , P Bx 56 Commck 1 1 7 2 5

And y te ay . hre re some rather act vefedera frequecs (n egahertz)

ret i15375: Charle atode prmay channl1 6 6 4 6 2 5 . " Ra y c om m o c h a n n l rsry et

Derent409625

Justi Dent36.074 1 1 0 2 5

Gene i minitin

(tin f fe u iing)4 1 5 24 1 7 2

Drug nfnt minitrtin4 1 6 . 05 41 6 325 , 41 8 . 5 , 4 1 6 2

CRECNIn last month's l ist of mss announcementnumbers, we negleted to menton tht teycould a lo be reaced fom area oe 8

HNE NUES F TEEST2 1 2 - 2 2 2 - 8 1 8 . P ar en ts U 1 te d 8 3 3 3 . ScrambleFax8-2233331 . . A Bank 1 1 - 1 - 3 2 282 Reorng, w l tone


23/24

N O T I C E

D o e s y o u r a d d r e s s l a b e s y " T i e t o R e n e w ? D o n ' t i s s n

s s u e e n e yo u r s u b sc r i p t i o n t o d y a n d e n j o pe ce o f i n d S p l y i n d i c t e t h e a o n t e n c l o se d a n d h i c h , i f n b c ki s s u e s yo u w n t Yo u r a d d r e ss l a b e s h o u l d b e o n t h e b c k of t h i s o r .

$ 1 5 ye of 260$28 . 2 yes f 260 4

.

.

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3 yers of 26 40 1 ear c r p o ra t e s u b s r i p t i o $ . . ' 2 e a c ate s u b s r i p t i o $ 1 0 3 e a o p a t e s u bs c r i pt i o ve r s s s ubsc t i ( 1 e C o n l )$ . veseas crte s r t i o y r l y ) 2 6 0 f e s u s c i p t n ( e ve a g a i l l e bot r yo u )

B a c k i s u e s a r e a va l a l e P r i c e s a e :

9 8 4 985 , o r 98 i u s 1 2 a $ 50 : Any to y . . . . A l l t h r e yea rs ( 36 I s u )v er $ or oere lw we fr de i ve ry

l l r r s PO x 7 Y U S ( 5 1 ) 7 5 1

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T C E D O R B S P _ O N O E F R BAC K I S __ 4 (c i rc le yea s odee) L M U T N E D : (ip nd sn us- y dss s th ck)


24/24

CONTES I BULIN S 3IB'SV/CMSSVTEM . . .4 : IS. PREFiXS 6LTEG . 7LCOM M . 8 lS 1 2200 MAK : 1 9

0MazlnP87S2l la 1 1 UAWNING

MIING L

2600: The Hacker Quarterly (Volume 4, Number 11, November 1987)

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Transcript of 2600: The Hacker Quarterly (Volume 4, Number 11, November 1987)