CNN Your Money April 19, 2014 18:11:00
>> reporter: how do hackers keep themselves safe? >> things like what are called authentication. allow you to enter a password and something else. gmail has it built in automatically. >> reporter: you're an ethical hacker and know how people hack. when you go to facebook, check your e-mail? >> i don't actually know my passwords inside of my head. i don't know my pass words. literally between 32 and 50 characters long and completely unique to where you've never be able to guess those. >> reporter: kennedy keeps his passwords stored in a password vault. programs like keypass and onepass for mac ...