i was playing a game and suddenly my knight started moving around the board taking a couple pieces while my opponent was setting up a mate the rest of the game went on out of my is it hacking or just a bug this just happened today for a second time HELP
Piece moved by itself

i was playing a game and suddenly my knight started moving around the board taking a couple pieces while my opponent was setting up a mate the rest of the game went on out of my is it hacking or just a bug this just happened today for a second time HELP
Likely accidental premoves
If you have a mouse AND touchpad, see if your fingers drag across the touchpad.
I disable my touchpad because I'm always resting my hand on the touchpad.