1. Network Security

2. Announcements Review Assignment - Assessment 3 (due Tuesday, before class) Assessment 3 – Next Thursday Reminders: Network Design Project No more than 2 per group Proposals due on the day of presentation Sign-ups shortly 2

3. Basics of Network Security Anti-virus / Anti-Spyware Access Controls Firewall Intrusion Protection/Detection Systems Identify fast spreading threats Virtual Private Networks 3

4. Access Controls The four processes of access control

5. Firewalls

6. Example: Packet Filtering Firewalls

7. Intrusion Detection and Prevention Systems (IDPS)

8. Intrusion Detection and Prevention Systems (cont’d.)

9. STUXNET

10. STUXNET – How it Worked

11. Stuxnet What was it? How did it spread and how far? What are the implications?

12. Stuxnet Precursors: What should we do now?

13. Target – What Happened?

14. Target – How did it happen?

15. Target – How could it have been stopped?

16. Target – Modern Day Hacking

17. Security Discussion TJ Maxx RSA Epsilon Gawker Wikileaks HB Gary 17

18. 11.1 Corporate Security: TJ Maxx War-Driving to seek vulnerabilities in wireless networks Breaches took place all the way back to 2005 Albert Gonzalez was mastermind 2005 -2007 sold as many as 170 million ATM/Credit Card #s Typically used SQL injection to launch packet sniffing Now serving 20 years in a federal prison

19. 11.1 Corporate Security: RSA Security companies are often the target of many hackers. Another case of phishing emails to get into the company Excel Spreadsheet had a Zero-day exploit Exploit took advantage of Adobe Flash allowing them to install a remote administration tool Used remote admin tool to get deeper information

20. 11.1 Corporate Security: Epsilon Occurred earlier this year Primary purpose for stealing Phishing – maquerading as a trustworthy entity to gain access to information Form of Social Engineering Carried out by email spoofing

21. 11.1 Passwords: Gawker Hack After hack, the Wall Street Journal Examine a number of passwords (188,279) and here are some of the most commonly found: password qwerty letmein trustno1 passw0rd Can anyone guess the most commonly used?

22. 11.1 Corporate Security: Higher Ed Threats Mobile Devices Social Media Viruses (hilarious video attack through FB) Virtualization Embedded devices (number of devices connected to the network) Consumerization of IT (personal devices for organizational use)

23. 11.1 Corporate Security: Wikileaks Exposed major security flaws in the US government Not standardized across agencies No user restrictions on copying data Minimal monitoring of users accessing sensitive data Recently, new measures are in place to alleviate problems. Bradley Manning trial begins December 16 th

24. 11.1 Corporate Security: HB Gary Found a flaw in content management system Used an SQL Injection to gain access Numerous issues with the system allowed hackers to obtain two passwords: the CEO (Aaron Barr) and COO (Ted Vera) Key takeaway: passwords! Don’t use short, easily deciphered Use different passwords for different accounts