A bad actor with access to peoples private data from Facebook, Google, or Apple could probably blackmail a large fraction of politicians, globally. Someone with

A bad actor with access to peoples private data from Facebook, Google, or Apple could probably blackmail a large fraction of politicians, globally. Someone with unchecked access to peoples private communications would have nearly unimaginable levels of power. It would also be fairly easy for these companies themselves to cover their tracks enough that it would be impossible to prove it wasn't a rogue employee or outside hacker acting alone. We already had "the Fappening" when iCloud was compromised, but I feel if someone did something similar and kept the data private for blackmail purposes, we'd probably never hear about it. Am I missing something here about how this wouldn't actually be possible? Frankly, I'd be surprised if it isn't already happening.