Loading
Loading
We use strictly necessary cookies to run this site, and analytics cookies to understand how it's used. See our Privacy Policy for details.
Breach occurred 2020-11-04cit0day.in
What happened
In November 2020, a collection of more than 23,000 allegedly breached websites known as Cit0day were made available for download on several hacking forums. The data consisted of 226M unique email address alongside password pairs, often represented as both password hashes and the cracked, plain text versions. Independent verification of the data established it contains many legitimate, previously undisclosed breaches. The data was provided to HIBP by dehashed.com.
Data exposed
Frequently asked questions
The Cit0day data breach occurred on November 4, 2020. It was added to Have I Been Pwned's breach catalog on November 19, 2020.
226,883,414 accounts were affected by the Cit0day data breach, according to Have I Been Pwned's records.
The Cit0day breach exposed the following data types: Email addresses, Passwords.
Have I Been Pwned has not independently verified the Cit0day breach. Unverified breaches can still be genuine — verification just means HIBP hasn't been able to confirm the data's authenticity directly, often because the source is a smaller or less-publicized incident.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the Cit0day breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
Check your email →Talk to us about this
We help organizations find and fix the gaps that lead to a breach, before they do.