Could you provide more context on or what you expect it to contain?

: Files with multiple extensions (like .mp4.zip ) are sometimes used by bad actors to trick users into downloading malware. You might think you are opening a video, but extracting and running files inside could execute harmful scripts.

: This means the MP4 video has been compressed or bundled into a ZIP archive to reduce file size or to package it with other assets. ⚠️ Important Security Warning