Data breach search

We provide this free breach search to help people spot risks early and tighten up their online security. Many people do not realise these checks exist, and a quick search can highlight where you may need to change passwords, enable two step verification, or be more cautious about phishing emails.

A data breach is when sensitive or confidential information is accessed, stolen, or disclosed by an unauthorised individual or group. Data breaches can occur in many different contexts, including cyber attacks on businesses, hacking of personal devices, and theft or loss of physical storage media such as hard drives or flash drives.

Data breaches can have severe consequences for individuals and organisations, as they may compromise personal or financial information, lose intellectual property, or damage an organisation's reputation. Depending on the nature and severity of the breach, affected parties may be at risk of identity theft, financial fraud, or other forms of harm.

Organisations that experience a data breach may be required to notify affected individuals or regulatory authorities and may face legal or financial consequences if they are found to be negligent or violate data protection laws. To prevent data breaches, individuals and organisations must protect sensitive information, such as using strong passwords, encrypting data, and implementing robust security measures.

This wealth of information is actively maintained and updated by its owner Troy Hunt, a security specialist in Australia. It currently contains over 17.3 billion records from hundreds of well known data breaches, and it continues to grow as new incidents are verified and added.

Even with a database this large, no breach list can ever be complete. If your email address shows no results, do not treat that as proof that everything is safe. If you are worried an account may have been compromised, change your password straight away, avoid reusing the same password on other websites, and turn on two step verification where it is available.

No, we do not collect or store any data you enter into the data breach search. The service is anonymous, and your details are not saved or used for tracking. Privacy is important to us, so we do not use Google Analytics, advertising trackers, or cookies designed to monitor your browsing.

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There are a few reasons for this. It might be that the company you originally joined has merged or changed its name. It could be because someone else has joined and used your email address. Older websites were less likely to require verification of email ownership at sign-up.

No. Holding and storing that information could attract hackers and risk further breaches. We do not have access to such details, or store any information on our website. We suggest changing your current password as soon as possible.