Mangatoon
On 13 May 2022, Mangatoon was breached. 23,040,238 accounts were exposed, including auth tokens, avatars, email addresses. MyRecon rates it 75/100 — severe. That is about 85% of the population of Australia.
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 description from Have I Been Pwned, used under a CC BY 4.0 licence.
Who was behind it
No party has been publicly confirmed as responsible, and this page will not name one. Most breaches are never formally attributed: data surfaces on a forum or inside a combined dump long after the intrusion, and the trail back to a specific actor is rarely made public. Where a group has claimed responsibility it is usually named in the account above — that claim is theirs, not a finding of ours.
What was exposed, and why it matters
- Auth tokensA stolen session token can be used without ever knowing the password, and password changes do not always invalidate it.
- AvatarsAdds detail to a profile that can be assembled from several breaches at once.
- Email addressesThe address becomes a confirmed, active target — expect more phishing, better aimed.
- GendersSmall on its own; useful to anyone assembling a fuller profile.
- NamesTurns an anonymous address into an identified person, which is what makes targeted phishing possible.
- PasswordsAnyone reusing this password elsewhere has those accounts exposed too — credential stuffing is automated and tries them all within days.
- Social media profilesAdds detail to a profile that can be assembled from several breaches at once.
- UsernamesA handle links this account to every other place the same handle is used.
What to do if you were in it
- Change this password anywhere you reused it, starting with your email account — that is the one that can reset all the others.
- Sign out of all sessions in the account's security settings. Changing a password does not always kill an existing session.
- Expect better-aimed phishing. A message that already knows your name and where you have an account is the whole point of a breach like this.
Questions people ask about this breach
Was my email address in the Mangatoon breach?
Enter it in the box at the top of this page. MyRecon checks it against this breach and every other one on record, and the address is never stored.
What data was leaked in the Mangatoon breach?
auth tokens, avatars, email addresses, genders, names, passwords, social media profiles, usernames. Each one is explained above, along with what it means for the person it belongs to.
When did it happen, and when did it become public?
The breach is dated 13 May 2022. It was published to Have I Been Pwned on 6 July 2022, a gap of 55 days during which the data was already out.
Is the Mangatoon breach real?
Yes. Have I Been Pwned lists it as verified, meaning the data was checked against the source rather than taken on trust.
How many people were affected?
23,040,238 accounts. That is about 85% of the population of Australia. That is accounts rather than people — one person often has several.
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Severity is scored by MyRecon from the number of accounts, the sensitivity of the specific fields exposed, and whether the breach is confirmed — not by a language model. The description above is quoted from Have I Been Pwned; the analysis around it is ours.