Phrack Magazine

Proof of Concept or GTFO. Hacker journal with deeply technical essays on reverse engineering and file formats. Often a valid PDF, ZIP, and bootable OS simultaneously.

ELF research group and zine. Deep technical content on binary hacking, virus writing, and Linux internals.

Archive of public exploits and vulnerable software. Essential resource for security researchers and penetration testers.

Massive wiki of hacking techniques for CTFs and pentesting. Privilege escalation, web attacks, and more.

Collection of security resources. Tools, books, and resources for security professionals.

Curated list of hacking resources. CTFs, tutorials, tools, and learning paths.