Large amounts of binary code (hence the "010101" name) that supposedly reveals a message when decoded.
Audio files with strange frequencies. 2. Technical Nature of the File 010101.7z
Because this file is often shared in deep-web forums or obscure file-sharing sites, its contents can vary depending on where you find it. 1. The "Creepypasta" or Internet Mystery Context Large amounts of binary code (hence the "010101"