I believe you are referring to the original title: "List of Y Combinator companies I have worked with(hacked)" (I had the same feeling when I opened the page).

I believe you are referring to the original title: "List of Y Combinator companies I have worked with(hacked)" (I had the same feeling when I opened the page). However, the author is a security researcher and has indeed hacked (as in, disclosed vulnerabilities) the companies in question, so I thing the title is not ambiguous.