I'll admit that I agree with a lot of the post but that I can't fully wrap myself around the cybersecurity situation today, is it basically:

-if code is open source or closed source, AI bots can still look for exploits

-so we need to use AI to develop a checklist program regardless to check for currently known and unknown exploits given our current state of AI tools

-we have to just keep running AI tools looking for more security issues as AI models become more powerful, which empowers AI bots attacking but also then AI bots to defensively find exploits and mitigate them

-so it's an ongoing effort to work on

I understand the logic of closing the source to prevent AI bot scans of the code but also fundamentally people won't trust your closed source code because it could contain harmful code, thus forcing it to be open source

Edit: Another thing that comes to mind is people are often dunking here on "vibe coding" however can't we just develop "standards / tools" to "harden" vibe coded software and also help guide well for decisions related to architecture of the program, and so on?