Breachesby GlyphXKCD
Disclosed Sep 1, 2019561,991 accountsUnverified
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.
What is known
| People affected | 561,991 (accounts in the leaked data, per Have I Been Pwned) |
|---|---|
| Disclosed | Sep 1, 2019 |
| Happened | Jul 1, 2019 |
| Attack | Not stated |
| Data exposed | EmailsIP addressesPasswords |
| Sector | Tech |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
| Check your email | Have I Been Pwned |
Sources
Notices filed
History of this record
First recordedby backfillSource
First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.