Am I being hacked?

I left my computer on overnight, and when I came to it, there was a weird notification:




I've never used or even heard of torch browser. Does anyone have any idea why this would have happened? I have no way to close it other than clicking one of the options. I thought if I closed system preferences via force quit it would close as well, but no. Help would be appreciated.

Torchbrowser looks to be another browser. If you didn't instal it, then you choose Safari a your default.

Next, go to the Applications folder and see if anything related to Torchbrowser is there, if so, drag it to the Trashcan..