Club Penguin Rewritten 2019 Data Breach
Community · Online multiplayer game recreation · Fan-run gaming platform · Global
Club Penguin Rewritten Fan Game Breach (2019): 4 Million Young Player Accounts Including Passwords Exposed
Fan-made recreation of Club Penguin game.
Confirmed · ObscureIQ Intelligence
Breach Risk Index i
44/100
Lower riskHigher risk
Moderate: notable exposure with meaningful misuse potential.
Data Sensitivity i
RestrictedBeing associated with this breach can itself be harmful. Disclosure is limited and presence is not confirmed to unverified parties.
4.0MRecords
2019Year
The Breach Risk Index (BRI) is a proprietary 0–100 score rating how dangerous a breach is right now, based on how recently the data has been circulating on the dark web and how valuable it is to attackers.
Crucial data exposed
MinorsChildren / minors
Breach Summary
In July 2019, the fan-made game Club Penguin Rewritten suffered a data breach exposing about 4 million unique email addresses, alongside IP addresses, usernames, and passwords stored as bcrypt hashes. This is in addition to a separate January 2018 breach (~1.7 million records).
Full threat analysis, exploitation vectors, and principal guidance below.
9 additional sections · verified field analysis · defensive doctrine
Querying breach corpus…
Cross-referencing exposed field types…
Resolving threat-actor attribution…
Compiling principal risk advisory…
4.0M records analyzed
About Club Penguin Rewritten
Club Penguin Rewritten was a fan-made revival of Disneys Club Penguin, a childrens massively-multiplayer online game (since shut down).
Why They Hold Your Data
Fan-run online gaming communities collect user accounts, usernames, emails, passwords, IP addresses, and in-game or community activity tied to multiplayer participation.
Data Points Exposed
4 verified field types
Email Address
IP Address
Password High
Username
Breach Impact
Bcrypt limits password recovery; the notable concern is the user base skewing toward children (minors), warranting caution around targeting.
Exploitation & Downstream Threats
• Credential stuffing against reused passwords across other platforms | • Targeted phishing campaigns using exposed email addresses
Principal Risk Advisory
What this means for a principal
A breach involving minors: identity data on children carries long-tail identity-theft and safeguarding risk. For a high-profile principal the main risk is credible impersonation and enrichment of existing exposure.
What You Should Do
- Reset any reused passwords and enable MFA on email first, then financial accounts.
- Do not use unofficial 'am I affected' lookups; several are themselves harvesting operations.
How ObscureIQ Can Help
- Corpus confirmation: determine whether and where the principal (plus household and staff) appear in this dataset and which specific fields are exposed for them.
- Exposure mapping: cross-reference the exposed identifiers against broker-available data to size and prioritize the principal's wider footprint.
- ThreatWatch tuned to this incident's identifiers and misuse pattern (impersonation and targeting patterns, not generic credential monitoring).
Protect Yourself
Protect Yourself: Limited Disclosure
Check Exposure: Verification Required
Because this breach involves data about minors, we do not confirm whether any individual appears in it to unverified parties. A verified parent, guardian, or the individual can privately check exposure.
We confirm exposure only to the affected individual or their verified parent or guardian.
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