From what someone told me rev/crypto/misc are the most broken, with pwn/web being more iffy and depending on challenge specifics.
I can't speak on AI usage very clearly (fun fact: just putting the challenge into ChatGPT's web UI sometimes works!), but I think the most egregious is orchestration platforms for agents (with MCP/whatever else) to autonomously solve challenges.
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From what someone told me rev/crypto/misc are the most broken, with pwn/web being more iffy and depending on challenge specifics.
I can't speak on AI usage very clearly (fun fact: just putting the challenge into ChatGPT's web UI sometimes works!), but I think the most egregious is orchestration platforms for agents (with MCP/whatever else) to autonomously solve challenges.