You can’t remove Facebook messages from the inboxes of people you sent them to, but Facebook did that for Mark Zuckerberg and other executives.
Three sources confirmed to TechCrunch that old Facebook messages they received from Zuckerberg have disappeared from their Facebook inboxes, while their own replies to him conspicuously remain.
An email receipt of a Facebook message from 2010 reviewed by TechCrunch proves Zuckerberg sent people messages that no longer appear in their Facebook chat logs or in the files available from Facebook’s Download Your Information tool.
When asked by TechCrunch about the situation, Facebook claimed in this statement it was done for corporate security:
“After Sony Pictures’ emails were hacked in 2014 we made a number of changes to protect our executives’ communications. These included limiting the retention period for Mark’s messages in Messenger. We did so in full compliance with our legal obligations to preserve messages.”
However, Facebook never publicly disclosed the removal of messages from users’ inboxes, nor privately informed the recipients. That raises the question of whether this was a breach of user trust. When asked that question directly over Messenger, Zuckerberg declined to provide a statement.