Case file: Arthur J. Gallagher & Co.
Every government filing on this incident, the dates as stated, and the days to notice against each state's statute. Built from the records on Nov 9, 2026, agency link on every row. Not legal advice.
The incident
- Breach window
- Jul 2, 2020 to Jun 23, 2021
- Discovered
- Sep 26, 2020, as stated in the Delaware letter
- State and federal records
- 3 filings, Jun 30, 2021 to Jul 9, 2021
- Residents counted
- 935 in 1 state (DE), latest filing per state
- Everyone affected
- 90,240, as reported to Oregon DOJ on Jul 8, 2021
- Information exposed
- Postal address
- Offered to those affected
- 24 months of credit or identity monitoring through Experian
- Third party named
- Yes, the letter attributes the incident to a vendor or service provider
- Days to notice
- Past the statutory period in all 3 states that set one, counted from discovery to each state's first record
- Prior incidents
- 1 earlier incident on record for this organization
The letter: "On September 26, 2020, Gallagher detected a ransomware event impacting our internal systems."
Filings
| Agency | Record date | People | In total | Days to notice | Links |
|---|---|---|---|---|---|
| Delaware Delaware DOJ | Jul 9, 2021 | 935 | 286 days, statute 60 days, over | Letter Record | |
| Oregon Oregon DOJ | Jul 8, 2021 | 90,240 (total) | 285 days, statute 45 days, over | Record | |
| California California AG | Jun 30, 2021 | Not published | 277 days, statute 30 days, over | Letter Record |
People is the count the filing gives, residents of the state unless marked total. Days to notice runs from the discovery date the letter states, or from the end of the breach window when no letter states one, to the date on the state's first record of the incident. "Over" marks a count past the days the state's statute allows for notice to residents. The statute's trigger is a question of fact, the days are arithmetic.
Notice timing, state by state
- 286 days from discovery (Sep 26, 2020) to the Delaware record (Jul 9, 2021). Statute: 60 days from determination of the breach (6 Del. C. § 12B-102).
- 285 days from discovery (Sep 26, 2020) to the Oregon record (Jul 8, 2021). Statute: 45 days from discovery or notification of the breach (ORS 646A.604).
- 277 days from discovery (Sep 26, 2020) to the California record (Jun 30, 2021). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
The statutes
- Delaware: 60 days to notify residents from determination of the breach, 6 Del. C. § 12B-102. Attorney General when more than 500 Delaware residents are affected, no later than the resident notice.
- Oregon: 45 days to notify residents from discovery or notification of the breach, ORS 646A.604. Attorney General when more than 250 Oregon residents are affected, with the consumer notice.
- California: 30 days to notify residents from discovery or notification of the breach, Cal. Civ. Code § 1798.82. Sample notice to the Attorney General when more than 500 Californians are notified, within 15 days of the consumer notice (effective 2026).
Prior incidents by Arthur J. Gallagher & Co.
| Records | Breach window | Filed with | People |
|---|---|---|---|
| Dec 6, 2019 | Mar 15, 2019 | California | n/a |
Filings more than six months apart are shown as separate incidents.
Filings by others that name Arthur J. Gallagher & Co.
Clients of a breached vendor often file under their own names and name the vendor.
- Arthur J. Gallagher & Co. (Supplement 7 – additional residents affected), Delaware, Aug 19, 2021, 515
- Arthur J. Gallagher & Co. (Supplement 6 – additional residents affected), Delaware, Aug 17, 2021, 5,997
- Arthur J. Gallagher & Co. (Supplement 5 – additional residents affected), Delaware, Aug 12, 2021, 1,369
- Arthur J. Gallagher & Co. (Supplement 4 – additional residents affected), Delaware, Aug 4, 2021, 12
- Arthur J. Gallagher & Co. (Supplement 3 – additional residents affected), Delaware, Jul 21, 2021, 2,438
- Arthur J. Gallagher & Co. (Supplement 2 – additional residents affected), Delaware, Jul 16, 2021, 286
- Arthur J. Gallagher & Co. (Supplement 1 – Date Correction), Delaware, Jul 12, 2021
Sources and method
Records as published by Delaware DOJ, Oregon DOJ, California AG. Letter facts (discovery date, monitoring, third party) are read from the consumer letter the agency posted, 2 letters read for this incident, and quoted so you can check them. Texas and HHS publish no letters. First-seen times on each record page. Spot an error? Email support@breachtally.com with this page link.