Impact & Downstream Threats
This breach carries critical risk due to the nature of exposed data fields and the scale of affected records.
- Identity theft and synthetic identity construction using government-issued IDs
- Identity verification bypass using name + date of birth combination
- SIM swap attacks where phone numbers are present
- Targeted phishing campaigns using exposed email addresses
Breach Intelligence
Executive Summary
New York, NY, – The hacktivist behind politically motivated data breaches at the , University of Minnesota, and , New York University, has now claimed responsibility for the recent massive data breach at Columbia University. ,
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In an exclusive communication with databreach.com, the hacktivist, who identifies as "niggy," detailed the technical scope of the Columbia compromise, which is the latest in a string of attacks intended to expose university admissions practices. ,
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About Columbia University
Private research university in New York City.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 346K records identified in breach intelligence sources.
- The data is indexed and searchable across breach notification platforms.
Recommended Actions
⚠️ Do not assume this is low sensitivity.
Non-clients may request a breach impact review.
Frequently Asked Questions
In June 2025, Columbia University experienced a data breach that exposed approximately 346K records containing personal information.
The exposed data includes fields such as date of birth, email address, full name, phone number, ssn.
Approximately 346K records were affected based on current breach intelligence.
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- A public-facing individual
- A high-profile executive
- A customer of Columbia University
- Or concerned about credential reuse
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