BreachCensus

Barton Gilman LLP

United States of America

Barton Gilman LLP is an organisation in Massachusetts. It appears on the Massachusetts Attorney General breach-notification register with 1 confirmed incident; the most recent notice was filed on December 24, 2025.

Data as of September 18, 2026.

Sources

Confirmed incident

US-MA

Disclosed
December 24, 2025

Timeline

  1. December 24, 2025
    Reported to regulator Regulator

    MA AG breach notification: 3,375 Massachusetts residents affected

    source
  2. January 10, 2026
    Litigation filed Court

    RECAP docket 1:26-cv-00015 (rid): Hellested v. Barton Gilman LLP

    source

Litigation

What a Massachusetts notice means

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 ↗

Related

Disclosed around the same time