Anti Public 2016 Data Breach
Data & Identity / Credential Compilation / Cybercrime
Anti Public Combo List (2016): 457 Million Credential Pairs Circulated
Aggregated credential-stuffing combo list, not a single company.
Compilation · ObscureIQ Intelligence
Breach Risk Index i
65/100
Lower riskHigher risk
High and current: recent, valuable data circulating on the dark web now.
Data Sensitivity i
RestrictedBeing associated with this breach can itself be harmful. Disclosure is limited and presence is not confirmed to unverified parties.
1.1BRecords
2016Year
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.
Breach Summary
In December 2016, the 'Anti Public' combo list emerged containing over 457 million unique email-and-password pairs aggregated from numerous prior breaches, built for credential-stuffing rather than originating from a single incident.
Full threat analysis, exploitation vectors, and principal guidance below.
10 additional sections · verified field analysis · defensive doctrine
Querying breach corpus…
Cross-referencing exposed field types…
Resolving threat-actor attribution…
Compiling principal risk advisory…
1.1B records analyzed
About Anti Public
'Anti Public' is not a breached company but an aggregated combo list of email-and-password pairs assembled from many prior breaches for use in credential-stuffing attacks, and named after a checker tool of the same era.
Why They Hold Your Data
As an aggregated combo list, it contains email addresses and passwords harvested from many separate source breaches rather than one organization's records.
Recent Developments
The list surfaced in December 2016 and remains a reference dataset for credential-stuffing and password-reuse research.
Data Points Exposed
2 verified field types
Email Address
Password High
Breach Impact
As a mass compilation, its significance is enabling large-scale credential-stuffing across unrelated services rather than harming one company.
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 consumer-service breach: contact and account data supports phishing, account takeover and profile enrichment. 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 Your Own Exposure: Verification Required
This data originates from an illicit online forum, and being listed is not proof of involvement. To protect people from false association, we confirm exposure only to the individual concerned. Verify your identity to privately check your own exposure.
We never confirm whether a specific person appears in this breach to anyone but that person.
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