Enzo Biochem
Disclosed Apr 13, 20233 years ago2,470,000 affectedConfirmed
Ransomware attack on Enzo Biochem exposes clinical test data of 2.47 million patients
Enzo Biochem suffered a ransomware attack on April 6, 2023 and found on April 11 that attackers had accessed and exfiltrated data. It said clinical test information of about 2,470,000 individuals was involved, including about 600,000 Social Security numbers.
What is known
| People affected | 2,470,000 (as reported by the organization) |
|---|---|
| Disclosed | Apr 13, 2023 |
| Discovered | Apr 11, 2023 |
| Attack | Ransomware |
| Data exposed | Names, Social Security numbers, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Enzo Biochem says ransomware attack exposed clinical test data of 2.5 million patientstechcrunch.com · News | News |
| Enzo Biochem Form 8-K, May 30, 2023sec.gov · SEC filing | SEC filing |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Apr 13, 2023 | 2,470,000 |
Other breaches at Enzo Biochem
| Breach | Affected | ||||
|---|---|---|---|---|---|
| Ransomware compromised 2.4M lab patients' data; USD 4.5M three-state settlementAug 13, 20242 years agoRansomware | Aug 13, 20242 years ago | Ransomware | Healthcare | Settled | 2.4M |
History of this record
- 2026-09-25 · added · seed source
First seen 2026-09-25 (Research), confirmed by Research. Record counts are as reported. Not legal advice.