BreachCensus

Harbor

healthcareHealthcareUnited States of America

Harbor is a healthcare organisation in Massachusetts. It appears on the HHS OCR breach portal and the Massachusetts Attorney General breach-notification register with 4 confirmed incidents; the most recent notice was filed on October 24, 2025.

Data as of September 2, 2026.

Sources

Confirmed incident

US-MA

Disclosed
October 24, 2025

Timeline

  1. October 24, 2025
    Reported to regulator Regulator

    MA AG breach notification: 10 Massachusetts residents affected

    source
What a Massachusetts notice means

Required under 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 ↗

Confirmed incident

US-OH — Hacking/IT Incident

Disclosed
September 30, 2025
Records affected
216,000

Was I affected? →

Timeline

  1. September 30, 2025
    Reported to regulator Regulator

    HHS OCR breach portal listing: Hacking/IT Incident; Network Server

    source
  2. November 13, 2025
    Litigation filed Court

    RECAP docket 3:25-cv-02474 (ohnd): Williams-Diggins v. Harbor Behavioral Healthcare, Inc.

    source

Litigation

Confirmed incident

US-OH — Hacking/IT Incident

Disclosed
June 20, 2025
Records affected
2,703

Was I affected? →

Timeline

  1. June 20, 2025
    Reported to regulator Regulator

    HHS OCR breach portal listing: Hacking/IT Incident; Email

    source
Confirmed incident

US-MA

Disclosed
May 18, 2019

Timeline

  1. May 18, 2019
    Reported to regulator Regulator

    MA AG breach notification: 5 Massachusetts residents affected

    source

Related

Same sector and location

Disclosed around the same time