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Social Networking

Social Networking. Keith Watson , CISSP-ISSAP, CISA Information Assurance Research Engineer, CERIAS. Security and Privacy. Find Me Online. ikawnoclast.com facebook.com / ikawnoclast t witter.com / ikawnoclast l inkedin.com /in/ keithwatson Please tweet as we go with # puaware. Overview.

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Social Networking

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  1. Social Networking Keith Watson, CISSP-ISSAP, CISA Information Assurance Research Engineer, CERIAS Security and Privacy

  2. Find Me Online • ikawnoclast.com • facebook.com/ikawnoclast • twitter.com/ikawnoclast • linkedin.com/in/keithwatson • Please tweet as we go with #puaware

  3. Overview • Own Your Space • Definitions and Terms • Questions • Passwords, Systems, Networks • Things to Keep in Mind • Service Specific Configuration Options

  4. Own Your Space

  5. A Guide to Facebook Security • A guide to risks and security features of Facebook • Available in English since August 2011 • Translated into seven languages • Arabic version available in mid February 2012 • http://ow.ly/8EYsb (guide) • http://ownyourspace.net/

  6. Terms CC-licensed photos by Dr Noah Lott, bnanative on flickr

  7. Types of Services • Networking • Facebook, Google+, Linkedin, Twitter • Content Sharing • Pinterest, Facebook, Dropbox, Google Drive • Location-based Services • foursquare, Google Latitude, Facebook, Gowalla

  8. Types of Protection • Security • Prevention of malicious action to systems, info • Safety • Prevention from physical or mental harm • Privacy • Prevention of exposing sensitive or private info

  9. Default Privacy Modes • “Mostly open” • The default sharing mode is public • You must choose to keep content private • “Mostly closed” • The default sharing mode is private • You must choose to share content

  10. Questions CC-licensed photos by Colin_K, Mario Belluci, Horia Varian on flickr

  11. Why is it free? • If a service does not charge you money, then you are paying in other ways • Marketing and Advertising • Privacy • Facebook has 1 Billion monthly active users • Revenues for Q2’12: $1.18 Billion, 84% from ads • Linkedin Marketing Solutions: $63.1 Million • Twitter uses Promoted Tweets based on you

  12. What are the risks? • Privacy • Reputation • Data • Access • Control • Employment • Legal Proceedings

  13. What should I do? • Realize that social networking is not free • Review the security/privacy settings of sites you use periodically • Stop using it!? • Deactivate or delete your accounts!? • Extract your data • Assume the worst case scenario is possible • Prepare for it

  14. Your Memoryand System Have Issues CC-licensed photos by ecastro, allaboutgeorge, TounuTouji on flickr

  15. Passwords and Password Tools • Weak/short passwords can be discovered • Brute password breaking is cheaper today • Strong passwords are needed, everywhere • You have too many passwords to remember! • Use a password tool to manage passwords • 1Password, LastPass, PasswordSafe, RoboForm • Browser integration, mobile platforms • Use one-time password systems

  16. System Security • Stay up to date with software • Especially Flash Player, Java, web browsers • Upgrade your OS! • XP is now 11 years old; support ended in 2009 • Remove internet software you do not use • Install anti-malware software • If it’s a Purdue system, this is software is free! • Make sure it’s updating • Your regular account should not be an admin

  17. Network Security • Avoid using open WiFi connections • A WPA2 connection with public password is safer • Use a virtual private network (VPN) • Purdue’s VPN available to Career Account users • Enable your OS or anti-malware firewall • Enable your home router’s firewall for devices • Disconnect your system from the network when not needed

  18. Things to Keep in Mind CC-licensed photo by joguldi on flickr

  19. Content Sharing Privacy • Before you post, ask the following: • Will this post/picture cause a problem for me? • Can I say this in front of my mother? • Divide your Friends into groups, lists, or circles • Limit the number of people that see it • Share public information with the public • Share inner thoughts and personal feelings with close friends

  20. Networking Privacy • Do not Friend or Connect with people that you have not met in person or know well • Reject Friend requests and Connections • Having a lot of Friends works can against you • Facebook may ask you to identify your Friends • Limit your visibility on services

  21. Location Privacy and Safety • Limit your check-in information to friends only • Never check in at your home, school, work • A mayorship is a public “office” • Avoid public lists for a location • Do not let friends check you in • Review posts you are tagged in

  22. Service Specific Configuration Options

  23. Google Security and Privacy • Enable 2-step verification • Use Google Authenticator or text-based codes • Applies to (almost) all Google services • Create Google+ circles based on sharing needs • Turn off geo location data in photos • Turn off “find my face” in photos and videos • Manage your Dashboard data

  24. Facebook Security Tools • Enable • Secure Browsing • Login Notifications (text and email) • Login Approvals (text and mobile Code Generator) • Select your Trusted Friends • Review and Monitor • Recognized Devices • Active Sessions • Delete old and unused Apps

  25. Facebook Privacy Tools • Limit App access to your data • Set your default audience to Friends • Customize your timeline content settings • Who can post, tag you, tag reviews • Disable tag suggestions for photos uploaded • Limit search engine inclusion • Limit third-party and social ads • Limit info that can be included by others in apps

  26. Dropbox Security and Privacy • Enable two-step verification • Disable LAN sync on laptops • Do not put sensitive data into Dropbox • Encrypt files if needed • Unlink old devices • Review Apps linked to your account • Turn on email for new devices and apps added • Review your shared folders periodically

  27. Twitter Security and Privacy • Enable Protect My Tweets • Enable HTTPS • Require personal information for password reset • Disable location data for tweets • Delete old location data too

  28. Linkedin Privacy • Turn off data sharing with third-party apps and sites • Consider changing your photo visibility, activity broadcasts • Remove Twitter access • Disable ads from third-party sites • Enable full-time SSL connections

  29. Foursquare Privacy • Do not include yourself in lists of people checked into a location • Do not earn mayorships • Do not let friends check you into places • Do not let venue managers see you

  30. Stay Safe • Stay up to date on software and settings • Be selective when choosing friends • Using your thinkin’ before you’re tweetin’! • Be mysterious

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