I discovered recently that Microsoft OneDrive will detect a ransomeware attack and provide you with the option to restore your data to a point before the attack

I discovered recently that Microsoft OneDrive will detect a ransomeware attack and provide you with the option to restore your data to a point before the attack! MS need to advertise this feature more, because I'd never heard of it and assumed all the files on the PC were toast! Of course, the fact that a script on Windows can be accidentally run and then quietly encrypt all the users files in the background is another matter entirely!