This particular example doesn't really alarm me, but it does make me think about a scenario that I believe is plausible in the near future. Imagine a world where AI enables anyone to write complex programs, regardless of skill level. In this case, we suddenly have a world where essentially anyone with malicious intent can lay bare vulnerabilities, even quite subtle ones, in critical software infrastructure and then generate code to exploit them- with little-to-no tech expertise required.

It seems that society becoming dependent on software was conditioned on the assumption that very few have the ability to exploit it and that fewer still have the ability and are malicious. But that assumption may not hold very soon.

However, there may be ways that AI can be used to improve security and robustness of software infrastructure to attack as well, so it may not be so bad. Time will tell.