Galaxy note 2 automatic send sms from my address book!

[AC Question]

It suddenly sends hundreds of blank msgs from my contact list---even business #'s, with the same time stamp!
This has happened 2 different days! Is my phone hacked?
What to do?--how 2 fix?

 

[B. Diddy]

Welcome to Android Central! Does it happen in Safe Mode as well? https://support.t-mobile.com/docs/DOC-11474