That's pre-2026 thinking. At this point, with the ability to lash IDA or similar tools to an agentic harness, there is no longer any such thing as a closed-source binary.
I’m interested in how LLMs handle obfuscated code. Throw LLM with IDA MCP at EasyAntiCheat_EOS.sys or the like (as the most common examples of heavily obfuscated software) and see how far they can get.