BreachCensus

Modoc Medical Center

United States of America

Modoc Medical Center is an organisation in California. It appears on the Massachusetts Attorney General breach-notification register, the California Attorney General breach-notification register and the New Hampshire Attorney General breach-notification register with 1 confirmed incident (2 filings); the most recent notice was filed on September 22, 2026.

Data as of September 28, 2026.

Confirmed incident

Filed in CA, NH and MA

The same incident was filed separately with 3 jurisdictions within a few days of each other (CA, NH and MA) — shown here as one incident.

Occurred
January 19, 2026
Disclosed
September 22, 2026

Timeline

  1. January 19, 2026
    Press coverage Press

    press report (press_reported): an unknown actor had access to parts of its computer network between January 19, 2026, and January 27, 2026

    source
  2. January 27, 2026
    Press coverage Press

    press report (press_reported): The unauthorized access was detected on January 27, 2026

    source
  3. January 27, 2026
    Press coverage Press

    press report (press_reported): an unknown actor had access to parts of its computer network between January 19, 2026, and January 27, 2026

    source
  4. January 27, 2026
    Press coverage Press

    press report (individuals_notified): notification letters are now being sent to the affected individuals

    source
  5. September 22, 2026
    Reported to regulator Regulator

    NH AG breach notification: an unknown number of New Hampshire residents affected

    source
  6. September 22, 2026
    Reported to regulator Regulator

    CA AG breach notification: an unknown number of California residents affected

    source
  7. September 22, 2026
    Reported to regulator Regulator

    MA AG breach notification: 10 Massachusetts residents affected

    source
What a California notice means

Governed by Cal. Civ. Code §1798.82. A copy of the notification must be sent to the Attorney General when a single breach requires notifying more than 500 California residents.

Note: no affected-count is published on this register.

California breach-notification register ↗

What a New Hampshire notice means

Governed by RSA 359-C:20. Notification to the Attorney General is required.

Note: the count is New Hampshire residents.

New Hampshire breach-notification register ↗

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 ↗