When a Power-Up is added to a board is a "Guest" added to the Users?

[Corey Davis]

Recently a teammate added a Power-UP (Cardsync) and it appears that a Guest User was also added to the board.  Is that correct, or did we get hacked?

[Pete Mitchell]

Hi Corey,

Due to the fact that your question is specific to your Boards and account, we aren't able to see what's happening from the Community forum. Would you please open a Support ticket with us, then we'd be happy to look into this further?

Make sure you're logged into Trello, then visit https://trello.com/contact and log a ticket at the bottom.

Best,
Pete | The Trello Team