Please don't cross into personal attack in HN comments, regardless of how foolish others are or you feel they are. It's not what this site is for, and destroys what it is for.

If you'd please review https://news.ycombinator.com/newsguidelines.html and stick to the intended spirit of the site, we'd appreciate it.

They used unexpected inputs to manipulate a computerized access-control system. How is that not a hack?

For most people, 'a hack' refers to a clever solution or exploit used to solve a problem, not merely something that breaks it.