Keeping Your Online Presence Safe and

Professional

November 8, 2013

What to expect today

• Cryptography and Online Shopping

• Password Security

• Professional Online Presence

Enigma (2001) Movie Trailer

Cryptography and Shopping Are they related?

Bombe Machine used to decipher Enigma Code in WWII

E-commerce and Digital Signatures• In 2009, $234.7 billion in retail merchandise

was sold.• 48.1% of this was e-commerce sales

• Online shopping continues to grow. $327 billion is expected to be spent in 2016.

• Retailers protect your information using digital certificates.

Source: U.S. Census Bureau, “E-Stats, 2009 E-Commerce Multi-Sector Report,” May 2011, <http://www.census.gov/econ/estats/>

What are digital certificates?

• Business buys certificate

• Company verifies ID

• Issues certificate

What does it mean?

Type of encryption

Cipher and cryptographic hash function

Let’s revisit the Enigma CodePublic Key – Code book issued by German Secret Service that had settings for each day. The stacker board was changed according to the code book.

Is there a private key?

No. The operator used the same book.

How would you make this asymmetric encryption?

Certificate IssuanceSymantec procedures to identify and authenticate Subscriber information from Section 3.2:

1. Use at least one 3rd party identity proofing service.

2. Telephone or postal mail confirmation that applicant has applied for certificate.

3. If certificate includes name of individual, verify that they are an authorized representative of the applying organization.

Are you safe shopping online?

• Several breaches have occurred. Fake digital certificates have been issued.– Bit9 – Endpoint and server security– Adobe

• Fictitious company in Brazil able to pass malware through a verified digital certificate.

• What to do?– Google to find info on company before

you purchase– Be leery of attachments in emails

P@ssW0RD S3CuR!Ty

Without password protection, nothing is safe!

Unique Passwords

Use a unique password for each of your important accounts

-Email

-Online banking

-Social Network

-School

-Work

Password Best Practices

Creating Your Password

•Use a long password made up of:

– Numbers– Letters– Symbols

What to Avoid

•Avoid using:– Only letters/numbers.– Names of spouses,

children or pets.– Phone numbers, SS#, or

birthdates– Same word as your log-in– Words that can be found in

the dictionary.

Keeping Your Password Safe

• Keep your passwords in a secret place that isn’t easily visible– Don’t leave notes with

passwords in plain sight

• It is important to change your password– Every 30 to 90 days

Creating a Strong Password

LastPass – Password Manager

LastPass, con’t

• Autofill or autologin to sites

• Group by type of website

**What are some disadvantages to using a password manager?

Professional Online Presence

What does your online presence say about you?

Be Professional

Clean up your social networking sites such as Facebook and Twitter

Employees Fired Over Posts

Facebook

1. Customize your privacy settings

2. Keep photos appropriate

3. Be careful what you post

4. Be aware of what you share or “Like”

Library of Congress Is Archiving All of America’s Tweets

Twitter

Professional Networking

1.Write a short description that is professional and indicates your career field.

2.Link to your professional website such as LinkedIn or an ePortfolio (optional).

3.Upload a professionally appropriate photo

4.Choose a professional Twitter handle