HackingDelayed DiscoveryCustomer Data InvolvedIdentity (basic)Government IDCritical

ARTHUR J. GALLAGHER & CO.

bd_29bb498af183cd33 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Jun 23, 2021

Filed

Sep 13, 2021

To disclose

12 weeks

Affected · nationwide

104,52636 in this filing

Confidence

63%

Full breach record for ARTHUR J. GALLAGHER & CO. →31 incidents on file

Arthur J. Gallagher & Co. experienced an external system breach between June 3, 2020, and September 26, 2020. The incident, discovered on June 23, 2021, resulted in the compromise of names and Social Security numbers. The company notified the 36 affected Maine residents on September 13, 2021, and offered 24 months of identity protection services through Kroll.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Jun 23, 2021 → Filed with AG Sep 13, 202182d ⏱ ME AG >30d12 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 385 days

discovery → filing · 12 weeks / 82 days

Jun 3, 2020

Begins

Jun 23, 2021

Discovered

Sep 13, 2021

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed104,526 affectedView incident

Name: ARTHUR J. GALLAGHER & CO.
norm: arthur j gallagher

Name: ARTHUR J. GALLAGHER & CO.
norm: arthur j gallagher

Discovered: Jun 23, 2021
Breach occurred: Jun 3, 2020 – Sep 26, 2020
Undetected for: 385 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 13, 2021
Affected individuals: 104,526state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
Threat actor: External

During the incident: Offered 24 months of identity theft protection services through Kroll
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(82 days from discovery to filing)
Compliance flags: ME AG >30d · 82d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Jun 23, 2021
→ Filed with AG: Sep 13, 2021
82d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jun 23, 2021 → Filed with AG: Sep 13, 2021	82d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

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/f63fdfd7-d8a5-41a6-a3e2-f5cfcd189aaf.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 13, 2021
Raw hash: 848a92ae2911a12b2fd94045d5be88f512a4c196a106e33db883d579e96560d0

Reporting entityARTHUR J. GALLAGHER & CO.

Victim entityARTHUR J. GALLAGHER & CO.

Incidentdiscovered Jun 23, 2021

Stated responseOffered 24 months of identity theft protection services through Kroll

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov