Breach date: 2022-05-13. Added to this index: 2022-07-06. Accounts affected: about 23M. Domain: mangatoon.mobi.
What happened
In May 2022, the Hong Kong based Manga service Mangatoon suffered a data breach that exposed 23M subscriber records. The breach exposed names, email addresses, genders, social media account identities, auth tokens from social logins and passwords stored as salted MD5 hashes. Mangatoon did not respond to multiple attempts to make contact regarding the breach.
Breach data sourced from Have I Been Pwned, used under CC BY 4.0. Additional breach metadata provided by XposedOrNot. DataExposed is an independent service and is not affiliated with or endorsed by either.
What was exposed
Auth tokens: Strings a service issues after you log in, session cookies, API keys, refresh tokens or reset links, that prove to the server you are already signed in.
Avatars: The small profile image attached to your account, which may be a real photo, a cartoon, a generated icon or a picture taken from another service.
Email addresses: The email address you used to register or log in. It is the most common field in breaches because it doubles as your username on most sites.
Genders: The gender or sex recorded on your profile, usually picked from a list at signup, sometimes with a title such as Mr or Ms or a gender identity option beyond male and female.
Names: Your first name, surname and sometimes middle name or initials, as you gave them when you signed up. It appears in almost every breach because nearly every account asks for it.
Passwords: The secret you use to sign in, stored by the breached service either in plain text, in a scrambled form called a hash, or encrypted. How it was stored decides how quickly it can be recovered.
Social media profiles: Usernames, profile URLs or handles for social networks such as Facebook, Instagram, X, TikTok, LinkedIn or Discord, stored alongside another account.
Usernames: The handle or login name you chose for an account, which may be public on forums, games and social platforms or used privately to sign in.
What to do now
Check whether your own address is in this dataset with the free email breach check.
Change the password on this service and every other site where you used the same password.
Turn on two-factor authentication on your email account first, because it is the reset path for everything else.
Treat calls and messages that quote real details about you as hostile until you verify them another way.
Frequently asked questions
What data was leaked in the Mangatoon breach?
The Mangatoon breach exposed Auth tokens, Avatars, Email addresses, Genders, Names, Passwords, Social media profiles, Usernames. About 23M accounts were affected.
Was I affected by the Mangatoon breach?
Run the free email breach check with the address you used on that service. It will tell you whether your address appears in this dataset.
What should I do about the Mangatoon breach?
Change the password on that account and everywhere you reused it, then turn on two-factor authentication. Passwords from this breach are traded and tried automatically against other sites.