HHS OCR report ยท 2020
Aetna ACE data breach
Aetna ACE, a health plan in Connecticut, reported a breach affecting 484,157 individuals to HHS OCR on Dec 22, 2020.
OCR report facts
- Covered entity
- Aetna ACE
- Entity type
- Health Plan
- State
- Connecticut
- Individuals affected
- 484,157
- Submission date
- Dec 22, 2020
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
Aetna ACE, the covered entity (CE), reported that multiple employees of its business associate (BA) experienced a phishing attack that affected the electronic protected health information (ePHI) of 484,157 individuals. The ePHI involved included names, addresses, Social Security numbers, dates of birth, diagnoses, and financial and other treatment information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE revised its policies and procedures relati...
Text as published on the HHS OCR breach portal.
Other reports by Aetna ACE
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Aetna ACE | CT | Health Plan | 1,317 | Dec 20, 2024 | Unauthorized Access/Disclosure | Archive (closed) |
| Aetna ACE | CT | Health Plan | 9,191 | May 3, 2024 | Hacking/IT Incident | Archive (closed) |
| Aetna ACE | CT | Health Plan | 4,222 | Dec 27, 2022 | Hacking/IT Incident | Archive (closed) |
| Aetna ACE | CT | Health Plan | 325,278 | Jul 27, 2022 | Hacking/IT Incident | Archive (closed) |
| Aetna ACE | CT | Health Plan | 893 | Feb 15, 2022 | Hacking/IT Incident | Archive (closed) |
| Aetna ACE | CT | Health Plan | 1,011 | Sep 22, 2021 | Hacking/IT Incident | Archive (closed) |
| Aetna ACE | CT | Health Plan | 8,664 | Jul 14, 2021 | Hacking/IT Incident | Archive (closed) |
| Aetna ACE | CT | Health Plan | 562 | May 26, 2021 | Unauthorized Access/Disclosure | Archive (closed) |
| Aetna ACE | CT | Health Plan | 1,084 | Jul 29, 2020 | Hacking/IT Incident | Archive (closed) |
Frequently asked questions
How many people were affected by the Aetna ACE data breach?
The report to HHS OCR lists 484,157 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Dec 22, 2020.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Email.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Aetna ACE legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or Aetna ACE.