Club Penguin Rewritten 2019 Data Breach

Club Penguin Rewritten Fan Game Breach (2019): 4 Million Young Player Accounts Including Passwords Exposed

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
Limited DisclosureThis breach involves data relating to children. We do not confirm the presence of any individual publicly or to third parties.
Breach Risk Index i
44/100
Lower riskHigher risk
Moderate: notable exposure with meaningful misuse potential.
Data Sensitivity i
Restricted
Being 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
Classification Tags
Children & FamilyChildren2019

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

  1. Reset any reused passwords and enable MFA on email first, then financial accounts.
  2. Do not use unofficial 'am I affected' lookups; several are themselves harvesting operations.

How ObscureIQ Can Help

  1. Corpus confirmation: determine whether and where the principal (plus household and staff) appear in this dataset and which specific fields are exposed for them.
  2. Exposure mapping: cross-reference the exposed identifiers against broker-available data to size and prioritize the principal's wider footprint.
  3. ThreatWatch tuned to this incident's identifiers and misuse pattern (impersonation and targeting patterns, not generic credential monitoring).

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