Ages 11 - 15
News stories surface every day about how National Security Agencies have broken encryption, but what is media 'hype' and what's the truth? - Richard Mortier explains.
Ages 5 - 16
Security is very important on the internet. You often need to prove to another person that you know something but without letting them know what the information actually is (because they could just copy and use it). For example, you might need to convince an online music shop that you know your password for their website without sending them the password itself.