Ascension
Disclosed May 8, 20242 years ago5,599,699 affectedUnverified
Black Basta ransomware attack on Ascension exposes data of 5.6 million people
Ascension, a major US Catholic health system, was hit by a ransomware attack on May 8, 2024 that disrupted hospital operations for weeks. It later notified 5,599,699 patients and employees that files with personal and health information were copied on May 7 and 8.
What is known
| People affected | 5,599,699 (as reported by the organization) |
|---|---|
| Disclosed | May 8, 2024 |
| Discovered | May 8, 2024 |
| Attack | Ransomware |
| Data exposed | Names, Addresses, Health, Insurance, Financial, Social Security numbers, Dates of birth |
| Sector | Healthcare · US |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
| Lawsuit or fine | Class action lawsuits filed |
Sources
| Source | |
|---|---|
| Ascension: Health data of 5.6 million stolen in ransomware attackbleepingcomputer.com · News | News |
| Cyberattack disrupts operations at major US health care networkcnn.com · News | News |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | May 8, 2024 | 5,599,699 |
Other breaches at Ascension
| Breach | Affected | ||||
|---|---|---|---|---|---|
| Ascension patient data stolen from former business partnerDec 19, 20241 year agoVendor breach | Dec 19, 20241 year ago | Vendor breach | Healthcare | Confirmed | 437K |
History of this record
- 2026-09-25 · added · seed source
First seen 2026-09-25 (Research). Record counts are as reported. Not legal advice.