DisclosureLens
HackingIdentity (basic)Financial accountFinancial credentialsHighContained

ARTHUR J. GALLAGHER & CO.

bd_d79b29bc558a3c71 · schema v1 · pii pii-v1

Severity

High

Discovered

Jun 23, 2021

Filed

Sep 29, 2021

To disclose

14 weeks

Affected · nationwide

813,120497 in this filing

Confidence

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

An external system breach at Arthur J. Gallagher & Co. that occurred on June 3, 2020, was discovered on June 23, 2021. The breach affected 497 Maine residents, and the compromised information included names in combination with financial account numbers or credit/debit card numbers and their security codes. The company offered 24 months of identity theft protection services through Kroll.

Maine clockDiscovered Jun 23, 2021 → Filed with AG Sep 29, 202198d ✗ ME AG >90d14 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 · 14 weeks / 98 days

Jun 3, 2020

Begins

Jun 23, 2021

Discovered

Sep 29, 2021

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed813,120 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.