A friend’s hacked account sends you a link or file with this name to pique your curiosity.
Many mobile apps and desktop editors (like iMovie or Windows Photos) use this naming convention if you don't provide a custom title. For example, Gifu Seiki Industrial uses this file name for technical demonstration clips on their corporate site. MyVideo_1mp4
Generic names like "MyVideo_1.mp4" are frequently used in phishing scams on platforms like Facebook Messenger or WhatsApp. A friend’s hacked account sends you a link
MyVideo_1 | モノづくりプランナー - 岐阜精機工業株式会社 MyVideo_1mp4
Use a tool like ExifTool to see the "Create Date" and the software used to generate it, which can clarify if it's a legitimate personal file.
