B6391.mp4

Avoid double-clicking the file until you've verified its origin.

(Small KB files are more likely to be scripts/malware; large MB files are usually actual videos.) b6391.mp4

Most "mystery" files like b6391.mp4 are harmless leftovers from a social media session. However, in the digital age, it is always better to be skeptical of unrecognized files. Avoid double-clicking the file until you've verified its

Use a tool like MediaInfo to see the file's "true" properties without actually playing the video. in the digital age