That's the thing. It's in the land of promises and shoulds and belief and trust. I'm not taking away from the marvelous efforts for perfect data storage; such is impossible. But it all depends on how important your data is. Know where you data is. Know how it's stored Know how to retrieve it. This is true if it's art paintings in a museum or business data. Big company saying, "Trust Us, We Got You Covered"? Eh. I use cloud computing all the time. I have lots of data stored in uber-redundent backup systems whose location I only know the cities of. Yet, I also back up what matters to me to an external hard drive. Sometimes I even print out still. [not as much as I used to though; I've fallen behind on that] Things that are REALLY important to me, I have in different formats on different websites that are run by different companies. Multiple data centers handled by a single company, _still_ amount to a single backup. A single takeover of a company and a single bad decision can lead to a data loss. So, I trust them but only up to a point. I don't expect long-term storage (in the span of 10-15 years) out of these systems.