BreachCensus

Massachusetts Mutual Life Insurance Company

United States of America

Massachusetts Mutual Life Insurance Company is an organisation in California. It appears on the California Attorney General breach-notification register and the Vermont Attorney General breach-notification register with 8 confirmed incidents; the most recent notice was filed on May 4, 2026.

Data as of August 31, 2026.

Confirmed incident

US-VT

Disclosed
May 4, 2026

Timeline

  1. May 4, 2026
    Reported to regulator Regulator

    VT AG breach notification: 1 Vermont residents affected

    source
What a Vermont notice means

Required under 9 V.S.A. §2435. Notification to the Attorney General is required.

Note: the count is Vermont residents.

Vermont breach-notification register ↗

Confirmed incident

US-CA

Occurred
October 29, 2023
Disclosed
March 21, 2024

Timeline

  1. March 21, 2024
    Reported to regulator Regulator

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

    source
What a California notice means

Required under 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 ↗

Confirmed incident

US-CA

Occurred
August 17, 2017
Disclosed
August 29, 2017

Timeline

  1. August 29, 2017
    Reported to regulator Regulator

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

    source
Confirmed incident

US-CA

Occurred
December 3, 2013
Disclosed
December 16, 2013

Timeline

  1. December 16, 2013
    Reported to regulator Regulator

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

    source
Confirmed incident

US-CA

Occurred
September 13, 2013
Disclosed
October 4, 2013

Timeline

  1. October 4, 2013
    Reported to regulator Regulator

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

    source
Confirmed incident

US-CA

Occurred
May 8, 2013
Disclosed
June 4, 2013

Timeline

  1. June 4, 2013
    Reported to regulator Regulator

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

    source
Confirmed incident

US-CA

Occurred
January 30, 2013
Disclosed
March 6, 2013

Timeline

  1. March 6, 2013
    Reported to regulator Regulator

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

    source
Confirmed incident

US-CA

Occurred
July 13, 2012
Disclosed
July 31, 2012

Timeline

  1. July 31, 2012
    Reported to regulator Regulator

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

    source