DisclosureLens
HackingFinancial accountFinancial credentialsHighContained

ARTHUR J. GALLAGHER & CO.

bd_9856f23667c3a382 · schema v1 · pii pii-v1

Severity

High

Discovered

Jun 23, 2021

Filed

Aug 12, 2021

To disclose

7 weeks

Affected · nationwide

584,048738 in this filing

Confidence

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

Arthur J. Gallagher & Co. experienced an external system breach on June 3, 2020, which was discovered on June 23, 2021. The breach affected 738 Maine residents, and the compromised information included financial account numbers or credit/debit card numbers along with their security codes or PINs. The company notified the affected individuals on July 29, 2021, and offered 24 months of identity theft protection services through Kroll.

Maine clockDiscovered Jun 23, 2021 → Filed with AG Aug 12, 202150d ⏱ ME AG >30d7 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 · 7 weeks / 50 days

Jun 3, 2020

Begins

Jun 23, 2021

Discovered

Aug 12, 2021

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed584,048 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.