Can You Tell If Your Phone Is Hacked?

A warning sign is if you discover applications that you haven't downloaded, as well as missed calls, messages, and emails that you haven't sent. It's possible that a hacker took over your phone in order to make calls or send texts at a premium rate, or to transmit malware to the people in your contact list. In a similar vein, if you see surges in your data use, this may also be a clue that your account has been hacked.