This wealth of information is actively maintained and updated by it’s owner Troy Hunt
a security specialist in Australia. Currently, it contains over 10.2 billion records of data breaches from hundreds of commonly used websites.
Whilst it’s scope is vast, it is worth noting that this data reflects a fraction of the database breaches that have occurred worldwide in recent years. If your email address does not show up any results, do not consider that conclusive evidence that you are free from any concern or due care. If you have any concerns that account security has been compromised, your passwords should be changed immediately. You should also update any other accounts that use the same password.