I recently completed the pwn.college "Yellow Belt – Program Security" track.
It covered shellcoding, memory corruption, reverse engineering, ROP, heap exploitation and allocator internals — with lots of hands-on challenges using Ghidra, GDB, pwntools and angr.
What stands out is the challenge-driven approach: understanding not just how an exploit works, but why.
How do you keep your cybersecurity skills sharp?
#CyberSecurity #CTF #ReverseEngineering #BinaryExploitation #pwncollege
Live Stream of the NetBSD dev summit at BSDcan 2026, day 1
This is wild.
Anthropic ordered via export control directive "to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees."
That totally reflects my experience with recent Opus & Fable
Sometimes you have to sharpen your tools. I always wanted to have some "Presentation -> Video" tool but never found one working for me. Today I took the time to make it myself, and i'm happy with the results. This may make an appearance in a few weeks - stay tuned! :-)
#presentation #video #animation #texttospeach #tts #speakernotes #cybersecurity #tools #toolcraft
Want this a bit more "business ready" for sharing? Here we go!
In the past weeks, the pwn.college Dynamic Allocator Misuse module taught me many practical concepts I have long known from theory:
Use-after-free, double-free, tcache internals, LIFO reuse, tcache poisoning, arbitrary read, fake chunks, safe-linking, whitespace-armored addresses, and partial secret corruption.
Knowing theory is good, but experiencing those concepts in practice is priceless.
Thank you, @pwn.college!
#ctf #cybersecurity #pwncollege #malloc #heap #tcache #safelinking
Finished the pwn.college Yellow belt Dynamic Allocator Misuse - 4 weeks of type-2 fun.
Onward to greatness and my Yellow belt in pwn.college!
#ctf #cybersecurity #pwncollege #malloc #heap #tcache #safelinking
Jan Schaumann
Jared McNeill