One thing to keep in mind if you give others encrypted data is that the encryption might be practically unbreakable for now. But there's no guarantee it will s

One thing to keep in mind if you give others encrypted data is that the encryption might be practically unbreakable for now. But there's no guarantee it will stay unbreakable in the future. Given foreseeable advances in technology, along with unforeseeable breakthroughs in both technology and cryptoanalysis no one can really say how long it will be until your data is compromised. But what we can probably predict with some certainty is that at least some of these data storage companies will keep the encrypted data you send them for as long as they possibly can. And they may even share it with others.