: It supports AES-256 encryption for both file data and the file structure itself (header encryption).
If you are looking for information on the technology that makes the .7z format an "impressive feat" in terms of data compression, here are the key technical highlights often discussed in related papers: AnImpressiveFeat.7z
If "AnImpressiveFeat.7z" is a specific file you have encountered (perhaps in a challenge, a CTF, or a digital archive), it likely contains a document or project intended to showcase these capabilities. 7z Options - Directory Opus : It supports AES-256 encryption for both file