DisclosureLens
HackingFinancial ServicesProfessional ServicesFinanceCustomer Data InvolvedData ExfiltratedIdentity (basic)Financial accountFinancial credentialsHighContained

ARTHUR J. GALLAGHER & CO.

bd_45e73c05af047786 · schema v1 · pii pii-v1

Severity

High

Discovered

Jun 23, 2021

Filed

Aug 17, 2021

To disclose

8 weeks

Affected · nationwide

1,140,520882 in this filing

Confidence

50%
Full breach record for ARTHUR J. GALLAGHER & CO. →31 incidents on file

Arthur J. Gallagher & Co. reported a data breach affecting 882 Maine residents. The breach, which was discovered on June 23, 2021, occurred on June 3, 2020. The incident was described as an external system breach (hacking), and the compromised information included names in combination with financial account numbers or credit/debit card numbers along with their security codes. Affected individuals were notified on August 17, 2021, and offered 24 months of credit monitoring services from Kroll.

Maine clockDiscovered Jun 23, 2021 → Filed with AG Aug 17, 202155d ⏱ ME AG >30d8 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 · 8 weeks / 55 days

Jun 3, 2020

Begins

Jun 23, 2021

Discovered

Aug 17, 2021

Filed

vs. sector median

1 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1,140,520 affectedView incident

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.