: Receiving a video via WhatsApp or Telegram can sometimes result in "duplicate" extensions if the file is saved or forwarded multiple times. How to Safely Handle It
: Certain browser extensions or downloaders might append a second extension during the saving process. 195739_720p.mp4.mp4
: If you didn't download this yourself, be cautious. Malicious code can occasionally be hidden in unused parts of MP4 metadata. : Receiving a video via WhatsApp or Telegram
: The double extension is usually a sign of a naming error or a security risk . 195739_720p.mp4.mp4