RE: WARNING: If you voted on steemengineteam post change your keys immediately

I was a victim of this. I have since changed my password and keys.
My guess is that is was some form of "Upvote Bank" or Steem Auto that got hacked because according to Steemworld.org for that account, most of the upvotes were $0.00 and 100% but some were like 77% or 10% or whatever people had set their amounts to.