"Office" castmates including Craig Robinson and Angela Kinsey star in ads touting AT&T's security system for small businesses.

Fame doesn't come without a cost, especially in the age of internet trolls and online harassment, and nobody knows that better than Milana Vayntrub.

There are hundreds of commercials featuring the sweet Lily Adams (Milana Vayntrub) hawking AT&T's wares. But what you may not know about the AT&T commercial girl is that, despite initially being ...