Back in CTFs: crypto, rev and THEM?!

I'm back in capture-the-flag competitions, competing with THEM?!. My main categories are cryptography and reverse engineering: the puzzles that reward understanding the mathematics or taking software apart to see what it actually does.

On CryptoHack, I'm currently ranked #1 globally and #1 in Finland. I've completed all the tracks and am working through the CTF Archive. Rankings change over time, so the profile is the best place to check the latest position.

I'm also working toward cybersecurity certifications and continuing my preservation work, including media with no posts or copies on the Internet Archive.

I'll publish challenge solutions in the CTF writeups section after events allow them to be shared. There are no challenge writeups there yet.