This kind of sandboxing is not complex to do, especially for a company with OpenAI money. If you want your tools to explore hacking, you restrict them from internet access except for a whitelist of sites that have either opted-in, or you've very carefully vetted to make sure you won't cause any problems to. Its also not difficult to restrict their ability to make calls to be simulated, or to use fake tools that can only run the real commands if they're being run against the correct target
This is all incredibly basic security stuff to make sure you don't accidentally cause someone problems, and I simply don't believe these AI companies anymore. Its either intentional, or gross negligence