Anti Public Data Breach
Status: Confirmed
Breach Intelligence Summary
Entity: Anti Public · Actor: Unknown · Source: DataBreach.com / ObscureIQ intelligence
Attack: Credential Compromise via Compromised credentials
Timeline: Breach (Dec, 2016) · Reported (Dec, 2024) · Leak (12/1/24)
Exposure: 1.1B+ records · Password, Email
Status: Confirmed · Risk: Moderate (Account takeover)
Summary
In December 2016 the cybersecurity landscape was jolted by the emergence of the Anti Public Combo List , a massive compilation of over 457 million unique email and password pairs. Unlike a breach stemming from a single source this dataset was an aggregation of credentials from numerous previous breaches including those affecting major platforms like Adobe Dropbox LinkedIn and Yahoo. The list was widely circulated on hacker forums and dark web marketplaces making it a readily accessible tool for malicious actors. The Anti Public Combo List became a primary resource for credential stuffing attacks. In these attacks cybercriminals use automated tools to test stolen email-password combinations across various websites exploiting the common practice of password reuse among users. The widespread availability of this list significantly lowered the barrier to entry for such attacks posing substantial risks to individuals and organizations alike. An analysis by Duo Labs revealed that while 70% of the passwords in the list contained at least one number indicating a slight improvement in password complexity only 6% included uppercase letters and a mere 4% had symbols. This underscores the persistent issue of weak password practices among users despite ongoing awareness efforts .​ The Anti Public Combo List is often mentioned alongside other massive data compilations such as the Exploit.in list and the Breach Compilation which collectively encompass billions of credentials. These compilations highlight the cumulative effect of multiple data breaches and the importance of robust cybersecurity measures to protect personal information .​
About Anti Public
Anti Public is the organization affected by this breach. User data may have been generated through account creation, service usage, or business operations.
If you have interacted with Anti Public in any capacity, your data may be included in this breach.
Threat Actor: Unknown
The threat actor responsible for this breach has not been publicly identified or confirmed at this time.
- Compromised credentials
Breach Exploitation Status
Moderate
Status
Detected
Detected
Possible
Unknown
Unknown
1–3 years
Email addresses and usernames persist but credentials may rotate. Phishing risk remains elevated during this window.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 1.1B+ records has been identified in breach intelligence sources.
- The data is indexed and searchable across breach notification platforms.
Impact
This breach carries moderate risk due to the nature of exposed data fields and the scale of affected records.
- Targeted phishing referencing Anti Public accounts or services
- Credential stuffing against accounts sharing the same password
- Data broker enrichment and resale
Recommendations for Impacted Individuals
If you believe your information may be included:
Non-clients may request a breach impact review.
Anti Public account updates
Password reset requests
Verify directly through official channels.
Email compromise is often the first pivot point.
Frequently Asked Questions
In Dec, 2016, Anti Public experienced a data breach that resulted in the exposure of approximately 1.1B+ records containing personal information.
The exposed data includes Password, Email.
Approximately 1.1B+ records were affected based on current breach intelligence.
Yes. This breach is treated as confirmed based on data observed in breach intelligence platforms.
Data circulation has been detected across breach-sharing channels. Downstream exploitation risk exists based on the nature of the exposed fields.
Rotate passwords associated with Anti Public, enable multi-factor authentication on email and financial accounts, and monitor for suspicious activity.
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Corporate Accountability
Organizations that collect personal data have a duty to implement reasonable safeguards and to notify affected individuals when breaches occur.
Scope assessments may evolve as investigations continue. Users should not rely solely on early estimates when making risk decisions.
ObscureIQ Advisory
We combine proprietary dark web access with commercial and restricted breach intelligence to verify exposure and assess real-world risk.
- A public-facing individual
- A high-profile executive
- A customer of Anti Public
- Or simply concerned about credential reuse
We can confirm whether your information is circulating and evaluate downstream threat vectors.