: Some surveillance software or temporary cache folders use randomized alphanumeric names to avoid overwriting files.
: Generate a SHA-256 or MD5 hash of the file and search it on VirusTotal . This will tell you if the file has been flagged as malware or seen in other public databases. YXbWecVo.mp4
: Take a still frame from the video and upload it to Google Lens or TinEye . If the video is public, these tools may find its original hosting page. : Some surveillance software or temporary cache folders