Have you been pwned? Troy Hunt, a security researcher at Microsoft has set up a great project called “haveibeenpwned” so you can find out. You can use the website to search for an e-mail address and see if they have been included in past data breaches. You can also sign up to be notified of future breaches too. If your e-mail has been found, it will tells you what data has been leaked, such as poorly hashed passwords. My results (for my generic sign-up email) are below. The Adobe and LastFM password leaks are a serious concern since MD5 is no longer considered a secure hashing algorithm. Oops.