News > A bug meant Twitter Fleets could still be seen after they disappeared

A bug meant Twitter Fleets could still be seen after they disappeared

Fleets, as Twitter calls them, allows its mobile users post short stories, like photos or videos with overlaying text, that are set to vanish after 24 hours.

But a bug meant that fleets weren’t deleting properly and could still be accessed long after 24 hours had expired. The bug effectively allowed anyone to access and download a user’s fleets without triggering a notification that the user’s fleet had been read and by whom.