i think the bigger problem is people posting personal information about their self on site like facebook, flicker,...
People post when they are in holidays so robbers know when the house is empty,...
Their was/ is a site which collected all the free data of facebook and published it on site. Over a millions people personal information.
All this social networks are pure gold for secret agencies and other people.
I always try to not give away to much data.
10-20 years ago, everybody used nicknames on the internet. Today that is just a small group.
The same goes for smartphones.
There is actually a going discussion in Europe that Companies CEO's and politicians should not use them for security reasons.
There is a hacker group in Berlin who showed this off. All you need is a radio reciever and a software
And i am not paranoid,