Well, what's your threat model that you are worried about? I would imagine all of these companies have much better security and reliability than most internal IT departments. And I don't see them snooping for their own purposes. The NSA can get what they want anyways.
The one big issue is subpoena's / third party doctrine issues, but I imagine for many companies that's a decent tradeoff for the reduced IT overhead / security / reliability issues. Other industries, like law, should obviously avoid such services.
The one big issue is subpoena's / third party doctrine issues, but I imagine for many companies that's a decent tradeoff for the reduced IT overhead / security / reliability issues. Other industries, like law, should obviously avoid such services.