.mp4 (MPEG-4 Part 14), a digital multimedia container format most commonly used to store video and audio.
Unknown .mp4 files can occasionally be used in "Media File Jacking" or contain exploits targeting vulnerabilities in outdated media players.
If you encountered this file from an or as an unsolicited attachment:
Confirm with the sender if the file was intended for you.
Use a reputable antivirus tool to check for embedded scripts.
