Learn in public
Share useful context, document the path, and leave the next person a clearer map.
About NULL404
Make security knowledge easier to reach.
NULL404 is an independent cybersecurity research group for learners, builders, researchers, and defenders who want to understand systems and improve them ethically.
Test ethically
Practice only with authorization and treat privacy as part of technical quality.
Defend together
Turn individual lessons into community knowledge that raises the floor for everyone.