The filename format Received_[NumericID].mp4 is the standard naming convention used by when saving a video to your device.
This file likely originated from a video sent or received in a Messenger chat that was either manually saved or automatically cached by your app. Why did it appear "out of nowhere"? Received 1060049901243273 mp4
The long string of numbers (1060049901243273) is a unique identifier assigned by Facebook's CDN (Content Delivery Network). The filename format Received_[NumericID]
It's likely just a cached video from a social interaction, but staying vigilant about your storage is always a smart move. The long string of numbers (1060049901243273) is a
If you’re uneasy, run a quick scan using a trusted app like Bitdefender or Malwarebytes.
The Mystery of "Received_1060049901243273.mp4": Is Your Phone at Risk?
To prevent this in the future, go to Messenger > Settings > Photos & Media and toggle off Save on Capture or Save Photos and Videos .