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Security, you are also part of the game

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Data is a big thing now a days. Data is everywhere. Data is collected on almost as many places. And a lot of people want to access your data. But why exactly is your data important? What can people / …

Data is a big thing now a days. Data is everywhere. Data is collected on almost as many places. And a lot of people want to access your data. But why exactly is your data important? What can people / companies do with it? How can I keep my data safe. or that of my company? How do criminals get to your data? and most importantly, what can you do to avoid the fact that they steal your data?

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  • 1. Open solutions, smarter people Security You are also part of the gameThis work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
  • 2. Open solutions, smarter people Who is that guy?• Bert Desmet• 23 years old• Fedora – Ambassador, mentor, packager• Loadays – Co organizer• Numius – System Engineer, Consultant• Devnox – Developer, System Engineer
  • 3. Open solutions, smarter people Todays topics• Im a good hacker.• Why I love USB sticks.• Remember your password?• Shhhhhhht!
  • 4. Open solutions, smarter peopleI am a good hacker.
  • 5. Open solutions, smarter peopleNo tech hacking?
  • 6. Open solutions, smarter peopleShoulder surfing
  • 7. Open solutions, smarter peopleDumpster diving
  • 8. Open solutions, smarter peopleSocial engineering
  • 9. Open solutions, smarter peopleTaking pictures
  • 10. Open solutions, smarter peopleWhy I love USB sticks.
  • 11. Open solutions, smarter peopleThey are easy
  • 12. Open solutions, smarter peopleAnd small
  • 13. Open solutions, smarter people They are easily..• Forgotten• Stolen
  • 14. Open solutions, smarter people Some thoughts about it• Encrypt your sensitive data• Never put passwords on your system• Use the intranet• Never leave your portable gear alone• Never forget your gear
  • 15. Open solutions, smarter people Some statistics• 53% of UK workers lost portable devices – >50% at a drinking venue • Taxis and public transport• 1 lost data record cost more than $187 – 70% indirect cost • Lost costumers
  • 16. Open solutions, smarter peopleRemember your password?
  • 17. Open solutions, smarter people How to choose a password• Avoid using dictionary words• Use special characters and numbers• Change your password every month• Blah blah blah
  • 18. Open solutions, smarter people How to choose a password• Avoid using dictionary words• Use special characters and numbers• Change your password every month• Blah blah blah
  • 19. Open solutions, smarter people Entropy• H : Entropy• N : Possible symbols• Length of string H= L∗log2 N
  • 20. Open solutions, smarter people Example time!• This is.obviously a.bad passw0rd:-( – L : 35 – W : 94 – H : ±230• PrXyc.N(n4k77#L!eVdAfp9 – L : 23 – W : 94 – H : ±151
  • 21. Open solutions, smarter people Time to crack a password• [[Guesses before string is found = 2H]]• This is.obviously a.bad passw0rd:-( – 2230 = 1.72543659 × 1069 – 1000 guesses /s = 5.5 x 1058 years• PrXyc.N(n4k77#L!eVdAfp9 – 2151 = 2.85449539 × 1045 – 1000 guesses /s = 9 × 1034 years
  • 22. Open solutions, smarter peoplePassword Strenght
  • 23. Open solutions, smarter people Lastpass• Fully encrypted• Generate extremely hard passwords• Choose a good master password!
  • 24. Open solutions, smarter people Some tips• Never store passwords on pc• Never use autologin
  • 25. Open solutions, smarter peopleShhhhhhhht!
  • 26. Open solutions, smarter peopleI want you to shut up!
  • 27. Open solutions, smarter people Security through obscurity• Dont tell anyone• Security based on secrecy
  • 28. Open solutions, smarter people Kerckhoffs doctrine• Security cant depend on secrecy
  • 29. Open solutions, smarter people Reality• There are always leaks – By accident – Deliberately• Try to keep secrets
  • 30. Open solutions, smarter peopleWait! There is more!
  • 31. Open solutions, smarter peopleIn a perfect world..
  • 32. Open solutions, smarter peopleThere is always a hole.
  • 33. Open solutions, smarter peopleI like onions
  • 34. Open solutions, smarter people Multi Level Security• Multiple systems• Building fort Knox• You are the first line of defense
  • 35. Open solutions, smarter peopleExtra! Extra!
  • 36. Open solutions, smarter peopleSomething you have..
  • 37. Open solutions, smarter peopleYubikey
  • 38. Open solutions, smarter people I preach.And I practice.
  • 39. Open solutions, smarter people Questions?• Bert Desmet• Security, you are also part of the game• Mail: Bert@devnox.eu• Twitter: @bdesmet_• Website: http://blog.bdesmet.be• Website: http://www.devnox.eu• This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
  • 40. Open solutions, smarter people Sources• Chess game: http://www.flickr.com/photos/seeminglee/1479932683/• Closed vault: http://www.flickr.com/photos/mstyne/3654056683/• Open vault: http://www.flickr.com/photos/spotsgot/156025944/• Onion: http://www.flickr.com/photos/inferis/107293622/• Laptop + usb stick: http://www.flickr.com/photos/wstryder/2780310027/• New York Public Library: http://www.flickr.com/photos/paul_lowry/2616820493/• Statistics on loosing gear: http://www.securestix.com/bad_news.php• Shoulder surfing: http://www.flickr.com/photos/bonzoesc/209474964/• Dumpster: http://www.flickr.com/photos/urbanjacksonville/1803065217/• Telephone call: http://www.flickr.com/photos/lst1984/994531885/• Taking pictures: http://www.flickr.com/photos/glenpooh/708845839/• Xkcd joke: http://xkcd.com/936/• Shut up: http://www.flickr.com/photos/lorenia/934705558/• 3way handhake: http://media.photobucket.com/image/3%20way%20handshake/Haley_Bug/Mission%20Trip%20Choir%20Tour%202006/100_0087.jpg?o=1• Yubikey: http://www.flickr.com/photos/thofle/3206443137/• Special thanks to: Johnny Long
  • 41. Open solutions, smarter people

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