Prospect Medical Holdings, Inc.
ent_019e0acd77ea7e522e73c1445fae3adc
Disclosures
13
State AG · HHS OCR · Leak Site · 9 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
1,309,096
as filed · HHS OCR CA
Leak-site claims
1
unverified actor claims
Identity resolution
- Canonical name
- Prospect Medical Holdings, Inc.
- Normalized
- prospect medical— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- 549300NH25I1OLPBG255
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- pmh.com
Disclosure history (13)newest first
- Massachusetts State AGas victim2024-03-01
Prospect Medical Holdings, Inc. reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2024-03-01. 4,958 Massachusetts residents were affected.
- New Hampshire State AGas victim2024-02-29
Prospect Medical Holdings filed a supplemental notification with the New Hampshire Attorney General regarding a data security incident occurring in August 2023. The incident affected 1,882 New Hampshire residents, including patients, health plan members, and employees. The organization offered credit monitoring and established an incident response line.
- California State AGas victim2023-12-13
Prospect Medical Holdings, Inc. notified individuals of a data security incident where unauthorized parties accessed its IT environment between July 31 and August 3, 2023. The activity was first identified on August 1, 2023. Systems were taken offline immediately. Files containing protected health information (PHI) and personal information were accessed or acquired. A third-party forensics firm assisted in the investigation.
- Indiana State AGas victim2023-09-29
Prospect Medical Holdings, Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2023-07-31 and was reported on 2023-09-29. 5 Indiana residents were affected. 190,492 individuals affected in total.
- CALIFORNIAHHS OCRas victim2023-09-29
Prospect Medical Holdings, Inc. reported a ransomware incident affecting 1,309,096 individuals' PHI, including names, SSNs, DOBs, and medical data. The CE offered credit monitoring and implemented safeguards.
- New Hampshire State AGas victim2023-09-29
Prospect Medical Holdings, Inc. notified the NH Attorney General of a data security incident. Unauthorized access occurred July 31-Aug 3, 2023. Discovered Aug 1, 2023. Employee and dependent PII (including SSNs) accessed. 73 NH residents affected. Notifications mailed Sept 29, 2023. Credit monitoring offered.
- Maine State AGas victim2023-09-29
Prospect Medical Holdings, Inc. reported an external system breach (hacking) occurring between July 31, 2023, and August 3, 2023, discovered on September 13, 2023. The incident affected 190,492 individuals nationwide, including 67 Maine residents. Acquired data included names and Social Security Numbers. The company provided written notification and offered one year of credit monitoring and identity theft protection services through IDX.
- Vermont State AGas victim2023-09-29
Prospect Medical Holdings, Inc. notified Vermont AG that an unauthorized party accessed its IT network between July 31 and August 3, 2023, acquiring patient information including names and health data. The incident was discovered on August 1, 2023. The company engaged forensic investigators and offered one year of credit monitoring and identity protection services to affected individuals.
- California State AGas victim2023-09-29
Prospect Medical Holdings, Inc. notified California residents of a data breach where an unauthorized party accessed IT network files between July 31 and August 3, 2023. The company discovered the incident on August 1, 2023. Affected data included names and Social Security numbers of employees, dependents, and patients. The company engaged forensic investigators, notified law enforcement, and offered one year of credit monitoring and identity protection services.
- Massachusetts State AGas victim2023-09-29
Prospect Medical Holdings reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2023-09-29. 649 Massachusetts residents were affected. The report records the breach type as electronic.
- Montana State AGas victim2023-09-29
Prospect Medical Holdings, Inc. notified Montana and Rhode Island residents of a data breach where unauthorized access occurred between July 31 and August 3, 2023. The incident exposed patient and employee PII, including names and SSNs. Prospect Medical discovered the incident on August 1, 2023, engaged forensic investigators, and offered one year of credit monitoring.
- GLOBALLeak Siteas victim2023-08-24
Prospect Medical Holdings
- Illinois State AGas victim2023-01-01
PROSPECT MEDICAL HOLDINGS, INC. filed a data-breach notice with the Illinois Attorney General during 2023 (case 23-688). The register records the breach as discovered on August 1, 2023. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.