BreachCensus

Metropolitan Life Insurance Company

United States of America

Metropolitan Life Insurance Company is an organisation in Massachusetts. It appears on the Massachusetts Attorney General breach-notification register, the California Attorney General breach-notification register and the Delaware Attorney General data security breach database with 11 confirmed incidents (13 filings); the most recent notice was filed on March 9, 2026.

Data as of October 17, 2026.

Confirmed incident

Filed in CA and MA

The same incident was filed separately with 2 jurisdictions within a few days of each other (CA and MA) — shown here as one incident.

Occurred
January 29, 2026
Disclosed
March 9, 2026

Timeline

  1. March 9, 2026
    Reported to regulator Regulator

    MA AG breach notification: 3 Massachusetts residents affected

    source
  2. March 9, 2026
    Reported to regulator Regulator

    CA AG breach notification: an unknown number of California 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 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 ↗

Confirmed incident

US-MA

Disclosed
February 17, 2026

Timeline

  1. February 17, 2026
    Reported to regulator Regulator

    MA AG breach notification: 1 Massachusetts residents affected

    source
Confirmed incident

US-MA

Disclosed
January 14, 2026

Timeline

  1. January 14, 2026
    Reported to regulator Regulator

    MA AG breach notification: 1 Massachusetts residents affected

    source
Confirmed incident

US-MA

Disclosed
December 27, 2024

Timeline

  1. December 27, 2024
    Reported to regulator Regulator

    MA AG breach notification: 2 Massachusetts residents affected

    source
Confirmed incident

Filed in MA and DE

The same incident was filed separately with 2 jurisdictions within a few days of each other (MA and DE) — shown here as one incident.

Occurred
February 22, 2024
Disclosed
August 29, 2024

Timeline

  1. August 27, 2024
    Reported to regulator Regulator

    DE AG breach notification: 719 Delaware residents affected

    source
  2. August 27, 2024
    Reported to regulator Regulator

    DE AG breach notification: 719 Delaware residents affected

    source
  3. August 27, 2024
    Reported to regulator Regulator

    DE AG breach notification: 719 Delaware residents affected

    source
  4. August 29, 2024
    Reported to regulator Regulator

    MA AG breach notification: 154 Massachusetts residents affected

    source

Litigation

  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.
  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.
What a Delaware notice means

Governed by 6 Del. C. §12B-102. Notice to the Attorney General is required when a breach affects more than 500 Delaware residents.

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

Delaware breach-notification register ↗

Confirmed incident

US-MA

Disclosed
May 1, 2024

Timeline

  1. May 1, 2024
    Reported to regulator Regulator

    MA AG breach notification: 14 Massachusetts residents affected

    source

Litigation

  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.
Confirmed incident

US-CA

Occurred
November 18, 2023
Disclosed
April 22, 2024

Timeline

  1. April 22, 2024
    Reported to regulator Regulator

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

    source

Litigation

  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.
Confirmed incident

US-MA

Disclosed
April 9, 2024

Timeline

  1. April 9, 2024
    Reported to regulator Regulator

    MA AG breach notification: 365 Massachusetts residents affected

    source

Litigation

  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.
Confirmed incident

US-CA

Occurred
November 1, 2023
Disclosed
March 28, 2024

Timeline

  1. March 28, 2024
    Reported to regulator Regulator

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

    source

Litigation

  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.
Confirmed incident

US-CA

Occurred
July 24, 2020
Disclosed
August 10, 2020

Timeline

  1. August 10, 2020
    Reported to regulator Regulator

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

    source
Confirmed incident

US-CA

Occurred
October 18, 2018
Disclosed
November 16, 2018

Timeline

  1. November 16, 2018
    Reported to regulator Regulator

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

    source