The use of .mkv.mp4 is a classic technique used to bypass email filters or trick users. A legitimate video file only needs one container.

Visiting such sites often leads to aggressive tracking and cookie injection. 🛡 Recommended Actions

If you have downloaded a file with this name, do not open it . Even if it plays video, it could be running a background process.

Files with double extensions often hide .exe or .js payloads. High

If you visited a site to find this file, clear your browser's cache and cookies to remove tracking scripts.