1. Computer and Information Security Protecting yourself and your clients in the wild and wooly online world

2. To protect your computer and information assets…

3. …buy a Mac!

4. The End

5. Mac Hacked Via Safari Browser in Pwn-2-Own Contest A zero-day vulnerability … Macaulay pwned the Mac by sending it an e-mail that directed a user to a malicious site. Upon visiting the site, the user … was infected with malware, without clicking on anything within the site. -- eWeek Security Watch

6. Vectors for getting “pwned” Physical access  Theft  Seizure  Attack of opportunity Network access  Browsing the Web  Using email  Using a wireless connection  …

7. Physical protection Leave sensitive information at home Separate data from hardware Use encryption Use strong passwords Eliminate sensitive information Log out when not using

8. Cracking passwords Single word found in dictionary: ~ 1 s  Example: “translator” 7 random lowercase letters: ~ 45 m  Example: “uklahva” 10 random characters: ~ 632,860 years!  Example: “4pRte!ai@3”  (With Moore’s Law: 30 years) Source: Wikipedia (Password strength)

9. Network vulnerabilities

10. Internet & email Cross-site scripting (XSS) Phishing (social engineering) Viruses …

11. On a network: batten the hatches Filter Block Ignore

12. Internet

13. Firefox Safer Cross-platform Free/Libre Add-ins All the cool kids are using it!

14. Vital Firefox Add-ins Web of Trust NoScript

15. Web of Trust Warns users about risky websites that try to scam visitors, deliver malware, or send spam.

16. ginstrom…

17. warez…

18. NoScript Allows JavaScript, Java, Flash and other plugins to be executed only by trusted web sites of your choice.

20. Scripts from 15 sites!

21. Safer Email View email as plain text Beware of phishing Spam filtering

22. Example: MS Outlook

26. SpamBayes http://spamassassin.apache.org/ SpamAssassin http://spambayes.sourceforge.net/

27. Stay Safe! http://ginstrom.com/ijet-19/