Icon base by Lorc under CC BY 3.0 with modifications to add a gradient
Not surprised.
American company.
At some point, they will give everything necessary to the government. They're not going to risk billions of dollars over something unprofitable as a person's privacy!
If you like that, then it's time to switch to open source.
I'll also say that if your only protection is BitLocker, then you have shitty operational security. Especially if you log in with a MS account and knowingly backup your BitLocker key with them.
pikachu face