Airbags, yes. But you can't just make it provably impossible for a car to crash into something and hurt/kill its occupants, other than not building it in the first place. Same with LLMs - you can't secure them like regular programs without destroying any utility they provide, because their power comes from the very thing that also makes them vulnerable.

And yet in the US 40,000 people still die on average every year. Per-capita it's definitely improving, but it's still way worse than it could/should be.