vBulletin 2015 Data Breach
Social Networking / Community
vBulletin 2015 Data Breach
A forum software maker.
Confirmed · ObscureIQ Intelligence
Breach Risk Index i
14/100
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.
519KRecords
2015Year
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 November 2015, the forum software maker vBulletin suffered a serious data breach. The attack lead to the release of both forum user and customer accounts totalling almost 519k records. The breach included email addresses, birth dates, security questions and answers for customers and salted hashes of passwords for both sources.
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…
519K records analyzed
About vBulletin
vBulletin is a forum software maker.
Why They Hold Your Data
vBulletin is a forum software maker. Services like this typically hold activity history, dates of birth, email addresses, IP addresses, messaging handle, passwords, security questions, language, website url through account registration and normal operations.
Recent Developments
The vBulletin dataset circulated publicly; treat as part of the standing exposure landscape.
Data Points Exposed
9 verified field types
Activity History
Date of Birth High
Email Address
IP Address
Messaging Handle
Password High
Security Question / Answer High
Spoken Language
Website Url
Breach Impact
The exposure of credentials alongside personal data heightened account-takeover and reuse risk for vBulletin 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 social-platform breach: profile and contact-graph data supports impersonation, enrichment and social engineering. 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).
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