If you received this file from an unknown sender or a suspicious group, do not open it. Scan it with an antivirus program first. How Malicious MP4 Files Threaten Security and Reputation
Check the "Date Modified" in your file explorer. This tells you exactly when you received or saved the clip, which can help you find the original conversation. 1_5170666846541578998.mp4
Use VLC Media Player if the standard player fails, as it supports almost all MP4 encoding types. If you received this file from an unknown