Adpost 2025 Data Breach
Retail & Commerce / Classifieds
Adpost 2025 Data Breach
A classifieds service in the retail & commerce sector.
Confirmed · ObscureIQ Intelligence
Breach Risk Index i
22/100
Lower riskHigher risk
Lower: limited current risk based on data value and recency.
Data Sensitivity i
StandardExposed data is largely lower-sensitivity. Standard identity-protection precautions are advised.
3.3MRecords
2025Year
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 February 2025, data obtained from an earlier Adpost breach surfaced. The dataset contained 3.3M records including email addresses, usernames, and display names. Adpost later published a disclosure notice and advised they'd forced a credential refresh, among other actions.
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…
3.3M records analyzed
About Adpost
Adpost is a classifieds service in the retail & commerce sector.
Why They Hold Your Data
Adpost is a classifieds service in the retail & commerce sector. Services like this typically hold email addresses, names, usernames through account registration and normal operations.
Recent Developments
The Adpost dataset circulated publicly; treat as part of the standing exposure landscape.
Data Points Exposed
3 verified field types
Email Address
Full Name
Username
Breach Impact
The exposure created downstream fraud and phishing risk for those affected and drew scrutiny of Adpost's data protection.
Exploitation & Downstream Threats
• 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
- 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).
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