LeakNet Claims 11TB of Data Stolen in NYC Health + Hospitals Breach
ID: 261bd6fc-3c26-54cd-99b7-10a71370c164
STIX ID: report--261bd6fc-3c26-54cd-99b7-10a71370c164
Feed Name: HackRead
Threat Score
### Executive summary LeakNet claims to have exfiltrated an 11TB archive from NYC Health + Hospitals and published screenshots showing sensitive patient data, including PII and medical records; NYC Health + Hospitals publicly disclosed a breach that affected at least 1.8 million people after detecting unauthorized access between Nov 25, 2025 and Feb 11, 2026, and reported the incident to HHS, while LeakNet's larger 12 million victims claim remains unconfirmed.
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