https://www.techradar.com/news/youll-be-able-to-unsend-facebook-messages-eventually >News broke last night that Facebook CEO Mark Zuckerberg and other executives at the social network unsent their messages retracting them from recipients' inboxes.  >Facebook told TechCrunch, which has email evidence showing messages that were deleted, that it retracted the messages "to protect our executives' communications" following the Sony Pictures email hack of 2014.