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Breach occurred 2019-07-01Verifiedxkcd.com
What happened
In July 2019, the forum for webcomic XKCD suffered a data breach that impacted 562k subscribers. The breached phpBB forum leaked usernames, email and IP addresses and passwords stored in MD5 phpBB3 format. The data was provided to HIBP by white hat security researcher and data analyst Adam Davies.
Data exposed
Frequently asked questions
The XKCD data breach occurred on July 1, 2019. It was added to Have I Been Pwned's breach catalog on September 1, 2019.
561,991 accounts were affected by the XKCD data breach, according to Have I Been Pwned's records.
The XKCD breach exposed the following data types: Email addresses, IP addresses, Passwords, Usernames.
Yes. Have I Been Pwned has verified the XKCD breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the XKCD 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.
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