AccidentalHealthcareHealthcareMisdeliveryCustomer Data InvolvedGovernment IDIdentity (basic)HighResolved

QUEST DIAGNOSTICS INCORPORATED

bd_64f81844de618f51 · schema v1 · pii pii-v1

Severity

High

Discovered

Oct 29, 2021

Filed

Nov 16, 2021

To disclose

18 days

Affected · nationwide

5,3256 in this filing

Linked

6 filings

Confidence

66%

Full breach record for QUEST DIAGNOSTICS INCORPORATED →92 incidents on file

Quest Diagnostics reported an inadvertent disclosure of patient information on October 29, 2021, affecting 5,325 individuals, including 6 Maine residents. The breach involved names and Social Security Numbers. Quest Diagnostics notified affected individuals on November 16, 2021, and offered 12 months of credit monitoring through Experian.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Oct 29, 2021 → Filed with AG Nov 16, 202118d ✓ ME AG ≤30d18 days discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 18 days

Oct 29, 2021

Begins

Oct 29, 2021

Discovered

Nov 16, 2021

Filed

vs. sector median

8 wks faster

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Montana State AGbd_1bb2823f1487fb2c2021-11-16Candidate
California State AGbd_40b55f7149cee7eb2021-11-16Verified
Indiana State AGbd_b8c2d7cdf7dbdae82021-11-16Verified
Massachusetts State AGbd_fb33ff71753f90952021-11-16Verified

Show 1 more filing ↓up to 6d gap

New Hampshire State AGbd_33d4a39961d317092021-11-22 · +6dVerified

Name: QUEST DIAGNOSTICS INCORPORATED
norm: quest diagnostics

Name: QUEST DIAGNOSTICS INCORPORATED
norm: quest diagnostics
Industry: Healthcarellm

Discovered: Oct 29, 2021
Breach occurred: Oct 29, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 16, 2021
Affected individuals: 5,325state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unknown
MITRE ATT&CK: T1563 Blind Copy
Regulator citations: Filed data breach notice with Maine Attorney General

During the incident: Sent written notification to affected individuals
Offered complimentary 12-month subscription to Experian’s identity monitoring services, including credit monitoring
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 days(18 days from discovery to filing)
Compliance flags: ME AG ≤30d · 18d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Oct 29, 2021
→ Filed with AG: Nov 16, 2021
18d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Oct 29, 2021 → Filed with AG: Nov 16, 2021	18d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Montana State AGNov 16 · first

California State AGNov 16 · first

Indiana State AGNov 16 · first

Massachusetts State AGNov 16 · first

Maine State AGNov 16 · first · this page

New Hampshire State AG+6d

Pattern: first filing Nov 16 (MT), last Nov 22 (NH) — a 6-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/09e8bb9c-2533-47b5-80f6-20483570a369.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 16, 2021
Raw hash: ed53a5e63753989d11fe5e50dbd0f432aa91ec01d6e475fdc093d7fc39c51001

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityQUEST DIAGNOSTICS INCORPORATED

Victim entityQUEST DIAGNOSTICS INCORPORATED

Incidentdiscovered Oct 29, 2021

Stated responseSent written notification to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov