183 Million Leaked Accounts in Have I been Pwned: is your Email among Them?

data breach

Security expert Troy Hunt recently added a dataset of 183 million email accounts to ‘Have I Been Pwned’, which are involved in data breaches.

Have I Been Pwned (HIBP), the service that allows you to detect data breaches, has added 183 million leaked email addresses to its database. Security expert Troy Hunt has just added a new batch of leaked email accounts. According to HIBP, it involves 183 million email addresses with leaked login credentials, including unique email addresses, the websites they were entered on, and the passwords used.

Earlier this year, as many as 284 million logins were stolen and sold via the anonymous chat application Telegram.

183 Million Email Accounts

The leaked email addresses were collected with the help of Synthient, a security platform that detects and blocks malicious actors on platforms. “In 2025, Synthient collected billions of records with ‘threat data’ from various internet sources,” according to HIBP. “The data includes 183 million unique email addresses, along with the websites they were entered on and the passwords used.”

“After normalizing and deduplicating the data, 183 million unique email addresses remained, each linked to the website where the login credentials were recorded and the password used. This dataset can now be searched in HIBP by email address, password, domain, and the site where the credentials were entered,” according to HIBP.

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On the Have I Been Pwned website, you can find out if your data has already been leaked in a data breach. Enter your email address in the search bar, and HIBP will do the work for you. An overview of which data breaches have affected you will immediately appear.

Have your login credentials been leaked? Then immediately change the passwords of these accounts.