MangaDex data breach
The MangaDex breach happened on March 22, 2021 and exposed 2,987,329 accounts. 4 kinds of data were exposed.
Overview
- Site
- mangadex.org
- Breach date
- March 22, 2021
- Recorded on
- April 25, 2021
- Accounts exposed
- 2,987,329
- Exposed data
- Email addresses, IP addresses, Passwords, Usernames
- Risk score
- 68 out of 100
Risk based on the exposed data
This breach scores 68 out of 100. The score is driven mostly by Passwords, Email addresses, IP addresses.
The risk score is a guide to how dangerous a breach is, judged by the kinds of data exposed. The number of accounts is not included.
Breaches from the same period
- ParkMobile (2021-03-21, 20,949,825 accounts)
- Domino's India (2021-03-24, 22,527,655 accounts)
- KinoKong (2021-03-25, 817,808 accounts)
What affected users should do
- Change your MangaDex password, and also change it on any other service where you used the same password. You can create a new one with the password generator.
- Turn on two-factor authentication for your login.
This site organizes publicly available information about data breaches. Data as of December 6, 2025. Breach dates are as originally listed; when only the month is known, the date is recorded as the 1st.