Snapchat recently disclosed it had a security breach. 4.6 Million accounts where compromised, possibly exposing a username and password. The worst part was they knew about it and for months did nothing to fix it. You need to be careful of the applications you use. Just because it sounds cool, does not mean it is cool. Also, educate your children on such matters; they will download any application without thought. Since Snapchat was dishonest with its security state, I would recommend not using it.