content: https://haveibeenpwned.com/About I'm Troy Hunt, a Microsoft Most Valuable Professional awardee for Developer Security, blogger at troyhunt.com, international speaker on web security and the author of many top-rating security courses for web developers on Pluralsight. Unfortunately my account was stolen in the Adobe's breach and infact it is there  http://i.imgur.com/f2A8xPd.png I think the guy is honest and the site is safe and useful but if you have doubts then don't use it.