Have I Been Pwned | Check if your email has been leaked due to a data breach

I am Troy Hunt, Microsoft Regional Director and Developer Security Most Valuable Professional Award winner, blogger on troyhunt.com, international speaker on web security, and author of many top security courses for web developers on Pluralsight.

I have created HIBP as a free resource where anyone can quickly assess whether they may be at risk due to their online account being compromised or 'stolen' in a data breach. I want it to be easy to use and completely free, so that it can bring the greatest benefits to the community.

Except for sporadic donations, all expenses for building, operating, and maintaining the service are currently directly borne by myself. Fortunately, today's modern cloud services such as Microsoft Azure can achieve this without spending a lot of money!

What is the entire content of this website?

This website was born after the largest customer account breach at the time - Adobe. I often conduct post leak analysis on user credentials and constantly discover that the same account is exposed over and over again, usually using the same password, which puts the victim at further risk of other accounts being hacked.

The FAQ page is more detailed, but all data on the site comes from 'violations', where the data is exposed to people who should not be viewing it.

Why build a website?

This website has two main purposes for me: firstly, it is clearly providing services to the public. Data breaches are rampant, and many people are unaware of the scale or frequency of their occurrence. By summarizing data here, I hope it can not only help victims understand that their accounts have been invaded, but also highlight the severity of online attack risks on the Internet today.

Secondly, the website provided me with a great use case, allowing me to put many technologies together at their pace and keeping my hands-on skills up to date to some extent. Projects like this are an excellent way to maintain relevance, as my daily work increasingly focuses on software management rather than actually building things (which I happen to enjoy doing!). This is a very fulfilling journey, and I invite others to join me by frequently delving into the process on my blog. As the website inevitably evolves over time, I plan to keep up with this.