Files from unverified sources can contain tracking scripts or "phone-home" triggers that log your IP address.
The code HEZ usually refers to the "Hon-naka" (Honnaka) label, a well-known producer in the JAV industry. The number 404 identifies the specific release in that series. Safety and Security Warning HEZ-404.mkv.mp4
Distributing or downloading such files may violate copyright laws depending on your jurisdiction. Files from unverified sources can contain tracking scripts
.mkv.mp4 (This double extension often suggests the file has been renamed or is being shared via a platform that transcodes video files). HEZ-404.mkv.mp4