Breach filing
ArchivedAetna Inc.: 18,854 individuals, Nov 2016.
Aetna Inc. reported a breach of unsecured protected health information to the HHS Office for Civil Rights on 28 November 2016. The filing records the organisation as a business associate in Connecticut and lists 18,854 individuals affected, which makes it the 35th largest of the 144 Connecticut filings on the register and the 55th largest of the 328 filings submitted nationally in 2016. Among the 6 Connecticut filings made in 2016 it ranks 2nd.
Individuals affected
18,854
As reported to HHS
Modelled cost (IBM 2025)
$3.02M
Method shown, not disclosed
Rank in CT
35th
of 144 Connecticut filings
Rank in 2016
55th
of 328 filings nationally
Section F.1 / The filing
As posted by HHS OCR
Every value below is the portal's own field for this filing, plus its rank within the register.
- Covered entity type
- Business Associate
- Individuals affected
- 18,854
- Breach submission date
- 28 November 2016
- Submission year
- 2016
- Type of breach
- Loss
- Location of breached information
- Other
- Business associate present
- Yes
- State
- Connecticut (CT)
- Portal status
- listed in the HHS OCR breach portal archive
- Rank in Connecticut by size
- 35th of 144
- Rank in 2016 nationally
- 55th of 328
- Connecticut median filing
- 5,000 individuals
- Register id (derived)
- CT-20161128-aetna
Section F.2 / In context
Where this filing sits in Connecticut and in 2016
OCR classifies the incident as loss of records or equipment, with the breached information held in another location. Loss is the type recorded on 3 of the 144 Connecticut filings (2%) and on 5% of all filings submitted in 2016. Other appears on 6% of Connecticut filings.
A business associate is recorded as present on the filing, as it is on 35% of Connecticut filings. At 18,854 individuals the breach is 3.8 times the Connecticut median filing of 5,000 and 4.7 times the national median of 4,000 across all 7,884 filings. It sits in the 10,000 to 99,999 band, which holds 1,938 filings.
As of 28 August 2026 the case is listed in the HHS OCR breach portal archive. OCR's closing summary of the case is reproduced in full below.
Connecticut's breach notification statute (Conn. Gen. Stat. 36a-701b) requires notice to affected residents without unreasonable delay, no later than 60 days after discovery. Its attorney general threshold: all breaches (no minimum resident threshold). The HIPAA Breach Notification Rule ran alongside it: notice to affected individuals and to HHS without unreasonable delay and no later than 60 days after discovery, which is the clock that put this filing on the portal.
Multiplying 18,854 individuals by IBM's $160 customer-PII cost per record (Cost of a Data Breach 2025, the figure the site's calculator uses) gives a modelled $3.02M; the 2026 edition's $192 gives $3.62M. Both are modelled estimates with the method shown, not costs disclosed by Aetna Inc.. For scale, IBM's 2026 average cost of a healthcare breach is $6.64M, so this filing models at 0.5 times the sector average.
Section F.3 / OCR closing summary
The portal's archived description, in full
Written by the Office for Civil Rights when the case was closed and reproduced verbatim from the HHS export.
The covered entity (CE), Aetna, reported that a compact disk (CD) containing the protected health information (PHI) of 18,854 individuals and the password to access the CD were lost when mailed to another office. The types of missing PHI included members' names, dates of birth, and addresses. OCR reviewed the CE's policies and procedures on uses and disclosure of PHI, safeguarding PHI, minimum necessary, and its business associate agreements. Following the breach, the CE invested in electronic information storage, ceased creating and mailing encrypted CDs, and retrained all workforce members on the procedures to protect PHI. OCR obtained assurances that the CE provided breach notification to affected individuals and the media in accordance with the Breach Notification Rule.
Section F.5 / Modelled cost
18,854 individuals through IBM's per-record figures
Modelled cost / method shown, not a disclosed cost
ModelledIBM 2025 customer PII, $160 per record
$3.02M
18,854 x $160
IBM 2026 customer PII, $192 per record
$3.62M
18,854 x $192
Method: individuals affected, as reported by Aetna Inc. to HHS, multiplied by IBM's customer-PII cost per record (Cost of a Data Breach 2025 Figure 6 and the 2026 edition). No cost has been disclosed by the entity for this filing; the figure is a planning estimate, not a fact about the breach. IBM's per-record figures come from mid-volume breaches and IBM cautions against applying them to breaches involving millions of records; the site's per-record page explains where the multiplication holds and where it breaks down.
Context: IBM's average cost of a healthcare breach is $6.64M in the 2026 report ($7.42M in 2025); the global average across all sectors was $4.44M in 2025.
Cost per record: method and limits / Healthcare breach cost, IBM 2026
Section F.6 / Notification clock
Connecticut statute and the HIPAA rule
State notification statute
Connecticut: Conn. Gen. Stat. 36a-701b
- Notice to individuals
- Without unreasonable delay, no later than 60 days after discovery
- Attorney general threshold
- All breaches (no minimum resident threshold) (No later than the time notice is provided to affected residents)
- Private right of action
- No: Non-compliance is an unfair trade practice; only the AG enforces
- Penalty
- Up to $5,000 per willful violation under CUTPA, plus injunctive relief and restitution
The HIPAA Breach Notification Rule runs alongside the state statute: notice to affected individuals and to HHS without unreasonable delay and no later than 60 days after discovery.
Section F.7 / Peer filings
Connecticut filings closest in size
Neighbours by size rank among Connecticut filings in 2016, topped up from other years where 2016 has too few. Filings of 10,000 or more link to their own page.
| Covered entity | Type | Individuals | Submitted | Breach type | Location | BA |
|---|---|---|---|---|---|---|
| Stamford Podiatry Group .P.C | Healthcare Provider | 40,491 | 25 May 2016 | |||
| Group Life Hospital and Medical Program | Health Plan | 3,000 | 29 Feb 2016 | |||
| Best Health Physical Therapy, LLC | Healthcare Provider | 1,100 | 10 Nov 2016 |
Index / Companion schedules
13 HHS breach register
→Hub: every filing, by state, year and entity.
04 Biggest breaches
→Mega-breaches with primary-source cost figures.
Industry / Healthcare
→IBM 2026: $6.64M average, 13 years at #1.
Regulation / HIPAA penalties
→OCR enforcement tiers and the 60-day rule.
11 50-state laws
→Deadline, AG threshold and penalties per state.
Cost / Per record
→Where the per-record model is reliable.
Provenance
Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal (breaches affecting 500 or more individuals), retrieved 2026-08-28. Public domain. Individuals affected and dates as reported by the covered entity.
Portal: ocrportal.hhs.gov breach report. Statutory basis: HITECH Act section 13402(e)(4): the Secretary must post a list of breaches of unsecured protected health information affecting 500 or more individuals. Breaches affecting fewer than 500 individuals are reported to OCR annually and are not posted, so they are not on this register. Status wording follows the portal's two tabs ("Cases Currently Under Investigation" and "Archive") as of 28 August 2026; a filing moves to the archive when OCR closes the case. Modelled costs on this site are a method applied to the reported count, using IBM Cost of a Data Breach per-record figures, and are never a cost disclosed by the entity. This row: hhs-breach-archive__2026-08-28.csv, export row 5392.
Corrections: if you represent a listed entity and the portal row has been amended, email [email protected] with the portal entry and we will re-pull the export.