Title: Important message regarding your account security
1st line: NOTICE OF DATA BREACH
3rd line: What happened?
A recent investigation by Yahoo has confirmed that a copy of certain user account information was stolen from our systems in late 2014 by what we believe is a state-sponsored actor. We are closely coordinating with law enforcement on this matter and working diligently to protect you.
So TWO YEARS later they tell me they were hacked.
I don't use Yahoo that often, wasn't even aware I had an account with them