In the wake of recent Facebook controversies started following the "Cambridge Analytica Breach" also being discovered of scanning users private messages of its Messenger app, it was reported that Facebook was quietly deleting messages sent by CEO Mark Zuckerberg & other executives.
This news obviously had created a lot of talks among users seeing as a breach of trust, and to make good Facebook says that it plans on rolling out its "Unsend" feature to it's Messenger app that will be available for all users in coming months. Facebook says,
Nothing has been disclosed as to how the feature will work but we can expect this to be similar to "Whatsapp" who implemented last year i.e. after the wrong message is sent you will be allowed a few minutes time to delete the message you sent, so the message is removed from your end and also from the recipients end.