TFC CTF 2026 — Writeup
· Updated: Sep 12, 2026 · TFC CTF, CTF, Crypto, WriteUp
We jumped in with about an hour left and cleared all three crypto challenges. The full writeup lives on the team blog: heapunderflow.org/writeups/tfcctf-2026.
This is an automatically triggered Dead Man’s Switch notice.
This site has not been rebuilt for more than 30 days, and that means:
UmmIt Kin has passed away, encountered an accident, or is facing a major event that prevents internet access. (I don’t think so)
I’m probably no longer in this life. Or let’s say, you can’t find me anymore. XD
Yes, this may be my last message. To all my friends, it was nice to meet you, but I’m done with this life. My life is very challenging, emotionally challenging as well. This decision has actually been brewing for several years. Unfortunately, you’ve reached this page …