Pemiblanc 2018 Data Breach
Cybercrime / Threat Actor Infrastructure
Pemiblanc 2018 Circulating Data Breach
A threat actor infrastructure service in the cybercrime sector.
Compilation · 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.
111.0MRecords
2018Year
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 April 2018, a credential stuffing list containing 111 million email addresses and passwords known as Pemiblanc was discovered on a French server. The list contained email addresses and passwords collated from different data breaches and used to mount account takeover attacks against other services.
Full threat analysis, exploitation vectors, and principal guidance below.
11 additional sections · verified field analysis · defensive doctrine
Querying breach corpus…
Cross-referencing exposed field types…
Resolving threat-actor attribution…
Compiling principal risk advisory…
111.0M records analyzed
About Pemiblanc
Pemiblanc is a threat actor infrastructure service in the cybercrime sector.
Why They Hold Your Data
Pemiblanc is a threat actor infrastructure service in the cybercrime sector. Services like this typically hold email addresses, passwords through account registration and normal operations.
Recent Developments
The Pemiblanc dataset circulated publicly; treat as part of the standing exposure landscape.
Data Points Exposed
2 verified field types
Email Address
Password High
Breach Impact
The exposure of credentials alongside personal data heightened account-takeover and reuse risk for Pemiblanc users and drew scrutiny of its data protection.
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).
U(
Threat Actor: Unknown (aggregator)
Attribution based on available breach intelligence.
Read the full threat-actor profile →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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