Also there’s the fact that if you were going to do some serious cybercrime, it would make sense to leave a bunch of hard to find but still findable trails to a real person that isn’t you, so it could be a frame up!
For extra clever points, make it a person who already does protect their privacy by e.g. encrypting everything on local storage, doesn't like the cloud, and not being all over social media. If the cops bust them and can't find any evidence, they'll accuse them of hiding things, if they comply and decrypts their stuff and there's still nothing, the cops will still insist it was this person and they're still hiding something. If there's other incriminating stuff in the encrypted disks, boom the cops will bust them for that instead and will still think they got the master hacker...