: Password-protected documents that require brute-forcing or finding hidden clues in the metadata.
The file is a compressed archive (using the .7z or 7-Zip format) that contains a series of layered puzzles, often associated with competitions or "alternate reality games" (ARGs). These challenges are designed to test a participant's skills in cryptography, steganography, and reverse engineering. What’s Inside? 2023challenge.7z
: Pictures that look normal but contain hidden text or secondary files embedded within their pixels. 2023challenge.7z