> Can they delete it if they want to? Can they block me from accessing it? Since they are paying to store this data, and you agreed to let them do that for you

> Can they delete it if they want to? Can they block me from accessing it? Since they are paying to store this data, and you agreed to let them do that for you, then yes they can. But it's not in some kind of escrow. They even make it easy for you to get all of it for your own storage: https://www.facebook.com/help/131112897028467/ https://www.facebook.com/help/131112897028467/ https://takeout.google.com/settings/takeout https://takeout.google.com/settings/takeout