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Data breaches reported to the Delaware Attorney General

The Delaware Attorney General lists each notice since April 2018, with how many Delaware residents were affected and a sample of the letter. Its newest entry is from July 2025: the list does not appear to be kept up any more. The tracker has read 204 of its notices since 3 January 2023. Each links to the company’s page, with everything else known about the breach. The register itself.

Last 30 days
0
2026 so far
0
On the tracker
204
Breach to notice, median
97 days
01020Nov 23: 9 noticesDec 23: 8 noticesJan 24: 6 noticesFeb 24: 7 noticesMar 24: 7 noticesApr 24: 6 noticesMay 24: 14 noticesJun 24: 7 noticesJul 24: 7 noticesAug 24: 1 noticesSept 24: 1 noticesOct 24: 3 noticesNov 24: 2 noticesDec 24: 3 noticesJan 25: 5 noticesFeb 25: 2 noticesMar 25: 4 noticesApr 25: 3 noticesMay 25: 5 noticesJun 25: 5 noticesJul 25: 1 noticesAug 25: 0 noticesSept 25: 0 noticesOct 25: 0 noticesNov 25: 0 noticesDec 25: 0 noticesJan 26: 0 noticesFeb 26: 0 noticesMar 26: 0 noticesApr 26: 0 noticesMay 26: 0 noticesJun 26: 0 noticesJul 26: 0 noticesAug 26: 0 noticesSept 26: 0 noticesOct 26: 0 notices so farNov 23Jan 24Jan 25Jan 26
Notices to the Delaware Attorney General per month, last 3 years. The last bar is the month so far.

Time from the start of a breach to the notice: the median over the 197 notices that give both dates.

The largest notices

NoticeOrganisationAffected
Bayhealth Medical Center483,378 Delaware residents
Comcast Cable Communications LLC300,696 Delaware residents
Caesars Entertainment, Inc.154,611 Delaware residents
loanDepot, Inc.64,509 Delaware residents
MGM Resorts International47,266 Delaware residents
La Red Health Center34,067 Delaware residents
Evolve Bank & Trust27,417 Delaware residents
Delta Dental of California ( MOVEit data security incident)24,328 Delaware residents
Prudential Insurance Company of America19,433 Delaware residents
PharMerica Corporation19,393 Delaware residents

The latest notices

By year: 2025 · 2024 · 2023

NoticeOrganisationAffected
Anne Arundel Dermatology8,002 Delaware residents
Johnson Controls3,722 Delaware residents
Kelly & Associates Insurance Group, Inc.2,399 Delaware residents
Southeast Series of Lockton Companies, LLC (“Lockton”)3,503 Delaware residents
Lemonade, Inc.1 Delaware residents
McLean Mortgage Corporation597 Delaware residents
Kelly and Associates Ins. Group Supplemental Notice1,651 Delaware residents
LexisNexis Risk Solutions1,393 Delaware residents
Southeast Series of Lockton Companies, LLC (“Lockton”)3,501 Delaware residents
Water Pro, Inc. dba Culligan Water Conditioning14,780 Delaware residents
EB Archbald and Associates, Inc.14 Delaware residents
Change Healthcare (DE Update from 2024 Notice)not given
The Hertz Corporation, including the Hertz Dollar and Thrifty Brands3,118 Delaware residents
Kelly and Associates Ins. Group2,639 Delaware residents
Monro, Inc.587 Delaware residents
Pennsylvania State Education Association1,667 Delaware residents
Substitute Teacher Service, Inc.2,045 Delaware residents
Substitute Teacher Service, Inc.2,043 Delaware residents
Valsoft Corporation Inc. d/b/a AllTrust148 Delaware residents
Bayhealth Medical Center483,378 Delaware residents
PowerSchool Group LLC707 Delaware residents
Berman and Rabin P.A.501 Delaware residents
Avery Products Corporation228 Delaware residents
Wolf Haldenstein Adler Freeman & Herz LLP13,732 Delaware residents
Medusind, Inc.317 Delaware residents
Norwex USA, Inc.not given
Ascension Health616 Delaware residents
Ascension Health606 Delaware residents
AnnieMac Home Mortgage5,057 Delaware residents
Set Forth, Inc.4,569 Delaware residents
Landmark Admin, LLC5,061 Delaware residents
MoneyGram Payment Systems, Inc.1 Delaware residents
SelectBlinds662 Delaware residents
Avis Rent A Car System LLC921 Delaware residents
Metropolitan Life Insurance Company719 Delaware residents
The Godwin Firm P.A.3,748 Delaware residents
Artisans’ Bank (Supplemental)not given
Rite Aid Corporation17,787 Delaware residents
Advance Stores Company, Incorporated6,693 Delaware residents
Evolve Bank & Trust27,417 Delaware residents
Ticketmaster LLC500 Delaware residents
AmeriHealth Caritas Delaware2,823 Delaware residents
Infosys McCamish Systems, LLCnot given
Infosys McCamish Systems, LLCnot given
Infosys McCamish Systems, LLC10,069 Delaware residents
Landmark Admin, LLC. ( Supplemental )not given
Financial Business and Consumer Solutions, Inc.102 Delaware residents
Leonard’s Express770 Delaware residents
My Daily Choice, Inc.657 Delaware residents
Doxim, Inc.3,731 Delaware residents
Amgen Inc.8,491 Delaware residents
Lash Group - Sanofi US Services Inc. (Cencora, Inc.)6,313 Delaware residents
Financial Business Consumer Solutions (Second Supplement)not given
Johnson & Johnson Patient Assistance Foundation, Inc.2,465 Delaware residents
AandA Services d/b/a Sav-Rx3,162 Delaware residents
GlaxoSmithKline Group of Companies and the GlaxoSmithKline Patient Access Programs Foundation1,078 Delaware residents
Johnson and Johnson Services, Inc.3,309 Delaware residents
Lash Group - Regeneron Pharmaceuticals, Inc. (Cencora, Inc.)6,367 Delaware residents
Novartis Pharmaceuticals Corporation534 Delaware residents
AbbVie Inc.2,007 Delaware residents
Lash Group - Bristol Myers Squibb/Bristol Myers Squib - Patient Assistance Foundation (Cencora, Inc.)8,480 Delaware residents
Affiliated Dermatologists and Dermatologic Surgeons P.A.618 Delaware residents
Virginia Union University813 Delaware residents
The Philadelphia Inquirer, PBC561 Delaware residents
Financial Business and Consumer Solutions, Inc.10,818 Delaware residents
JPMorgan Chase Bank, N.A.2,394 Delaware residents
Houser LLP7 Delaware residents
Financial Business and Consumer Solutions, Inc.6,574 Delaware residents
Haverford Township, PA1,038 Delaware residents
On Q Financial, LLC954 Delaware residents
Prudential Insurance Company of America18,697 Delaware residents
Prudential Insurance Company of America19,433 Delaware residents
Harvard Pilgrim Health Carenot given
Houser LLPnot given
Nationstar Mortgage (dba Mr. Cooper)not given
GardaWorld Cash U.S.816 Delaware residents
Houser LLP1,358 Delaware residents
loanDepot, Inc.64,509 Delaware residents
Colorado Department of Health Care Policy & Financing148 Delaware residents
Harvard Pilgrim Health Care202 Delaware residents
Trinity Universal Insurance Company54 Delaware residents
Bank of America, N.A. (Addendum)899 Delaware residents
Bank of America, N.A. (Addendum)711 Delaware residents
National Board of Osteopathic Medical Examiners13 Delaware residents
Comcast Cable Communications LLC12 Delaware residents
Planet Home Lending, LLC786 Delaware residents
Coastal Hospice and Palliative Care (“Coastal Hospice”)1,494 Delaware residents
Philips Respironics International Colorado, Inc. (RICO)1,596 Delaware residents
National Board of Osteopathic Medical Examiners13 Delaware residents
Welltok, Inc.470 Delaware residents
La Red Health Center34,067 Delaware residents
LoanCare, LLC11,710 Delaware residents
Comcast Cable Communications LLC300,696 Delaware residents
23andMe, Inc.14,255 Delaware residents
Nationstar Mortgage LLC (dba Mr. Cooper)not given
Welltok, Inc. - Filing on behalf of multiple entities; please see Exhibit 1.9,402 Delaware residents
Gunster, Yoakley & Steward, PA823 Delaware residents
Zeroed-In Technologies, LLC8,253 Delaware residents
Big Brothers Big Sisters of America18 Delaware residents
Enstar (US) Inc131 Delaware residents

The 104 older notices are on the year pages above.

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.