Some people upload their entire private lives, personal and family photos to iCloud. Several celebrities were target of iCloud leaks and their nudes ended up into 'the fappening'.
Microsoft so far hasn't been hacked.
Microsoft so far hasn't been hacked.
How do you know?
Nation states wouldn't, but it's safe to assume powerful nation states are already in every cloud provider, at least the US glowy boys anyway according to Snowden.
And you are sure no hacker group has boasted, anywhere on the darknet, about hacking Microsoft? And even if that were true, you take that as strong evidence that Microsoft has not been hacked?