BreachCensus

Massachusetts data breach notices

15,140 notices on file, filed under M.G.L. c. 93H.

15,140Notices on file

Governed by M.G.L. c. 93H. Notice to the Attorney General is required for a breach affecting any number of Massachusetts residents' personal information -- the statute sets no minimum count.

Note: the count is Massachusetts residents only, not a total.

Massachusetts breach-notification register ↗

Notices by year

YearNotices
20261,405
20251,874
20241,893
20232,085
20221,972
20212,264
20201,933
20191,712
20142

Most recent notices

OrganizationReportedResidents affected
Azure Farms, Inc., d/b/a Azure Standard2026-09-2523
Man Group2026-09-2419
Peña & Bromberg2026-09-243
Walsh Financial Services, LLC2026-09-243
EOVS - Veterans Home at Chelsea2026-09-24124
St. Mary's Credit Union2026-09-241
Ladenburg Thalmann & Co. Inc.2026-09-2463
Pelli Clarke & Partners2026-09-242
Redfin Corporation2026-09-2455
NSE Insurance Agencies2026-09-2411
Madison Healthcare Services2026-09-234
AngMar Management Services2026-09-233
First Technology Federal Credit Union2026-09-231
Fairwinds Credit Union2026-09-23271
Health Access Network, Inc.2026-09-23243
Aesto, LLC2026-09-238
The Village Bank2026-09-233
County, Inc. d/b/a Holton Community2026-09-233
Modoc Medical Center2026-09-2210
Precipart Corporation2026-09-223
HarbisonWalker International, Inc.2026-09-2256
Kid CenterEd, PLLC2026-09-22198
United Underwriters2026-09-2215
The Woodlands Arts Council2026-09-213
Corpay, Inc.2026-09-2152
Acumen Fiscal Agent2026-09-211
Ridgeway Pharmacy Ltd2026-09-212,329
Forethought Life Insurance Company2026-09-217
The Village Bank2026-09-212
Lloyd Construction Company, Inc.2026-09-181
Seyfarth Shaw LLP2026-09-18142
Infotree Topco, LLC2026-09-1827
Daniel G. Mazzola2026-09-186
SOUND HSA, Inc.2026-09-181
SCF Realty Funding LLC2026-09-181
Aprio Advisory Group, LLC2026-09-181
Affordable Mortgage Advisors2026-09-181
Opportune LLP2026-09-18322
LeMaitre Vascular, Inc.2026-09-18955
Westfield Bank2026-09-182
IDScan.net2026-09-181
H. Pearce Real Estate Company, Inc.2026-09-171
Swish Sports, LLC2026-09-175
Brush Creek Partners2026-09-172
Mass General Brigham2026-09-171
Lincoln Investment Planning, LLC2026-09-171,867
Ocracoke Health Center, Inc.2026-09-1641
Tishman Speyer2026-09-1624
Tessco, LLC2026-09-1617
Kurt J. Lesker Company2026-09-163

Top organizations by notices

OrganizationNotices
Mutual One Bank390
The Village Bank306
St. Mary's Credit Union248
American Express Travel Related246
Main Street Bank210
WINCHESTER SAVINGS BANK193
Savers Bank170
Electronic162
Rockland Trust158
JPMorgan Chase Bank NA114
Wells Fargo Bank, N.A.114
Eastern Bank88
Bank of America86
Adams Community Bank82
Salem Five Cents Savings Bank73
Watertown Savings Bank59
Massachusetts General Hospital46
Eagle Bank44
Webster Five Cents Savings44
Brigham and Women's Hospital37
Dedham Savings35
TD Bank, N.A.33
Massachusetts Department of29
Ameriprise Financial, Inc.27
Capital One27
Charles Schwab & Co., Inc.26
Intuit Inc.26
Rockland trust Company26
Paper23
Wells Fargo Clearing Services, LLC23
Discover22
The Commonwealth of22
Cape Cod Five21
Department of Revenue20
Raymond James Financial19
The Lash Group, LLC19
Fall River Municipal Credit Union18
Webster Five Cents Savings Bank17
Mass General Brigham16
The Vanguard Group, Inc.15
Citibank, N.A.14
ExamOne (a Quest Diagnostics14
The Cooperative Bank of Cape14
Lincoln Financial Group13
M&T Bank13
Salem Five Bank13
Jackson National Life Insurance12
South Shore Bank12
UnitedHealthcare12
Fidelity Brokerage Services LLC11

Questions and answers

How many Massachusetts breach notices are on file?

15,140 notices are on file for Massachusetts, tied to a confirmed, visible incident on Breach Census.

When does the Massachusetts register on this site start?

The earliest notice on file for Massachusetts on Breach Census was reported in 2014.

What does the affected-resident count mean for a Massachusetts notice?

For a Massachusetts notice, the count is Massachusetts residents only, not a total.

Where do these Massachusetts notices come from?

Notices are ingested directly from Massachusetts's own breach-notification register at https://www.mass.gov/lists/data-breach-notification-reports.