MC2 2024.0 Data Breach
ObscureIQ Breach Intelligence
Low SeverityWebsite / service breach
MC2 Data Aggregator Exposure (2024): 2.1 Million Consumer Records Including Passwords Left in Open Database
data-related service or database with no clearly documented consumer domain
Verified by ObscureIQ Intelligence
30/100Breach Risk Index
8Data Value
25Market Recency
570dSince Breach
Breach Intelligence Summary
Entity: MC2 · Actor: Unknown · Sources: 2 references
Attack: Database Exposure
Profile: ** Company · Data services and database operations · Data-related service provider · Global
Timeline: Breach (2024-08-01) · Indexed (Dec 15, 2024) · Year (2024.0)
Exposure: 2.1M records · 3 fields: Email Address, Full Name, Password
Status: Confirmed
Executive Summary
In August 2024, background-check aggregator MC2 Data left a 2.2TB database publicly accessible without a password. It exposed about 2.1 million service subscribers (email, names, salted SHA-256 passwords) and, more significantly, background-check records on roughly 106 million US people including names, dates of birth, email, phone, IP and physical addresses, employment history, property and legal records, and even data on relatives and neighbors.
ObscureIQ assessment: Because it is broker-compiled background data, affected people generally never interacted with MC2; the exposure covers third parties (relatives/neighbors) as well.
Breach Impact
This is a high-sensitivity data-broker exposure: comprehensive dossiers on ~106M people (including non-customers and their relatives) enable identity fraud, profiling, and targeted scams at scale.
About MC2
MC2 Data is a US background-check and people-search data aggregator, operating under several brand names.
Why They Hold Your Data
Data services and database operators typically ingest large volumes of structured records such as names, email addresses, phone numbers, account identifiers, business records, and linked metadata so they can host, query, enrich, or redistribute datasets. Their workflows often involve record matching, data normalization, client delivery, and ongoing database maintenance across multiple data sources.
Data Points Exposed
3 verified field types
Email Address
Full Name High
Password Critical
Field names are shown in full for clarity and search visibility. Canonical machine keys are emitted only in this page’s structured data.
Exploitation & Downstream Threats
Threat Activity:High
Primary downstream threats:
- Credential stuffing against reused passwords across other platforms
- Targeted phishing campaigns using exposed email addresses
Threat vectors:
- Phishing, credential stuffing & account takeover
- Name-based social engineering
- Credential stuffing & account takeover
Recommended Actions
If you believe your information may be included:
Change Reused Passwords
Update this account and anywhere you reused the password; use a manager.
Enable MFA Everywhere
Turn on multi-factor authentication on email first, then financial accounts.
Report & Recover
If you spot misuse, start an official recovery plan and report fraud.
Frequently Asked Questions
What happened in the MC2 breach?▾
In August 2024, background-check aggregator MC2 Data left a 2.2TB database publicly accessible without a password. It exposed about 2.1 million service subscribers (email, names, salted SHA-256 passwords) and, more significantly, background-check records on roughly 106 million US people including…
What data was exposed?▾
Verified fields include Email Address, Full Name, Password.
What should I do if I was affected?▾
Change reused passwords, enable MFA, and (if identity or financial data is involved) freeze your credit and monitor your accounts.
Sources & References
Every claim on this page is traceable. This breach draws on:
Breach Index
ObscureIQ Intelligence
ObscureIQ proprietary analysis
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