Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Arthur J. Gallagher

Disclosed Nov 26, 20193,330 affectedConfirmed

Official notice

What is known

People affected3,330 (as reported by the organization)
DisclosedNov 26, 2019
HappenedMar 15, 2019
AttackNot stated
Data exposedNamesSocial Security numbers
SectorTech · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Arthur J. Gallagher
Official noticemaine.gov
Maine Attorney General breach notice archive: Arthur J. Gallagher

Notices filed

Residents of MENov 26, 2019
Maine AG37 people
Residents of CADec 6, 2019
California AGCount not stated

Other breaches at Arthur J. Gallagher

Ransomware breachRansomware exposed names, health records, insurance details and credentials and tokens. Reported to the California AG.90K affectedTechUSJun 30, 2021
History of this record
data_types2026-09-25
[] to ["names","ssn"]by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 3330by backfillSource
disclosed2026-09-25
2019-12-06 to 2019-11-26by backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about Arthur J. Gallagher