Re: Nowt to do with age.
I pity the next gen ration, they will be hacked to hell.
Think about it...
Date of birth?
Work out age of person from social media, it will be there, you may have to do a little maths i.e. Yippee my 21st birthday today, but that's about as hard as it gets.
Mother maiden name?
Look for Mom and dads wedding photos / anniversary details.
Pets name?
Sooo easy...
1st School?
It'll be there. look for their friends if the target doesn't publish it.
Hobbies?
Easy.
Address?
Little more difficult, but look for check ins, photos and so on.
First car...
Easy...every 17 / 18 year old will post a pic of the new motor, plus the registration will be in full view when they get it.
Facebook / Twitter / trend of the year is the "hackers" wet dream.
Make believe?
As a test at a youth club I help look after, to prove how easy this stuff is, with their consent we "hacked" a persons email, then Facebook and twitter accounts. We then got all their address and contact details.
Needless to say, the kids there are a bit more careful. It won't last, humans are cheap and easy. Offer free stuff and make it easier to do, and we'll do it.