Of course that's exactly what will happen. If you put your data in the cloud, it's one day going to be publicly available. If you don't like that, you should consider running private servers for your data.
Says who? Do their ToS even address what happens if they're bankrupt?
It sounds like Apple can legally do whatever they want if they go bust: https://law.stackexchange.com/questions/30810/what-happens-i...
I expect the same is true of all the other major cloud providers.
If you encrypted something in 1999 with 56-bit key DES, your data is no longer private.
> [Randy] has pointed out to Avi, in an encrypted e-mail message, that if every particle of matter in the universe could be used to construct one single cosmic supercomputer, and this computer was put to work trying to break a 4096-bit encryption key, it would take longer than the lifespan of the universe.
> "Using today's technology," Avi shot back, "that is true. But what about quantum computers? And what if new mathematical techniques are developed that can simplify the factoring of large prime numbers?"
> "How long do you want these messages to remain secret?" Randy asked, in his last message before leaving San Francisco. "Five years? Ten years? Twenty-five years?"
> After he got to the hotel this afternoon, Randy decrypted and read Avi's answer. It is still hanging in front of his eyes, like the after image of a strobe:
> I want them to remain secret for as long as men are capable of evil.
If anything, the fact that brute-force still seems to be the most practical attack against DES shows that (symmetric) encryption lasts surprisingly long.