The first thing I did after the Ashley Madison hack was exposed was check to see if my own email address had been compromised. It was, of course—I’d created an account years ago for a story (I swear). As I passed my email along to colleagues so they could test it on various Ashley Madison “checkers” that sprung up after the leak, it felt very strange to know I could type in anyone’s email address to see if they’d used the site. So I didn’t.