Something I got a little chuckle out of today.
Updated the driver on my video card last night. Turned out to be a little unstable. I was playing FFXIV today, game froze. Alt+tab out so I could kill it in task manager. When I went to do that I received a windows message that the video driver crashed.
I end task on the game, go to log back in and I get one of those messages that there has been suspicious activity and my account was locked.
Just found it odd that a video driver problem would cause this message. Followed instructions to reset my password, logged back in, finished the dungeon I was in. Rolled back my video driver and all is good.