The recent Colorado sexting scandal is drawing a lot of attention because of its sheer scale, but also because of the way students have allegedly shared hundreds of sexually explicit photos: through “ghost apps,” or apps that are disguised as normal apps but can turn into a secret photo vault.

“Ghost apps, hidden apps, they’re everywhere and kids know about them,” Mike Harris, Jefferson County District Attorney investigator, told NBC Nightly News.

So what exactly are these “ghost apps”? Read more…