Abc123.mp4 Apr 2026

: Due to its simplicity, "abc123" is cited as one of the most commonly used (and insecure) passwords globally. P-Video - Pruna documentation

The "abc123.mp4" file name is often a placeholder used in technical documentation, but it is also a well-known reference in the Undertale community to a hidden file named . The Story of abc_123_a abc123.mp4

: The file became so iconic that it was later used in an Alternate Reality Game (ARG) by YouTuber Sr Pelo for his Underpants parody series. Technical and Educational Context : Due to its simplicity, "abc123" is cited

: Numerous YouTube channels like Jolly ABC TV and brands like Scholastic Early Learners use "ABC 123" branding for videos and workbooks designed to teach toddlers basic literacy and numeracy. Gaster

In the original game files for Undertale , developer Toby Fox included a sound file titled to catch "data miners"—players who dig through code to find secrets before they are meant to be seen.

: Despite the message claiming there are no secrets, the eerie, robotic tone of the voices led many fans to associate it with the game's most mysterious character, W.D. Gaster .