BreachCensus

Magellan Health Inc.

United States of America

Magellan Health Inc. is an organisation in Wisconsin. It appears on the Massachusetts Attorney General breach-notification register, the California Attorney General breach-notification register, the Washington State Attorney General breach-notification register, the Iowa Attorney General security breach notification list and the Wisconsin DATCP data breach list with 3 confirmed incidents; the most recent notice was filed on June 15, 2020.

Data as of September 12, 2026.

Confirmed incident

US-WI

Occurred
April 11, 2020
Disclosed
June 15, 2020

Timeline

  1. June 15, 2020
    Reported to regulator Regulator

    WI AG breach notification: an unknown number of Wisconsin residents affected

    source
What a Wisconsin notice means

Governed by Wis. Stat. §134.98. No state agency must be notified. Affected individuals must be told within 45 days, and the national credit bureaus too when 1,000 or more people are notified; DATCP lists breaches reported to it or found to affect Wisconsin consumers.

Note: the count is Wisconsin residents only when published, not a total; many notices do not include one.

Wisconsin breach-notification register ↗

Confirmed incident

Filed in WA, CA and MA — Ransomware Attack

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

Occurred
April 6, 2020
Disclosed
May 11, 2020

Timeline

  1. May 11, 2020
    Reported to regulator Regulator

    WA AG breach notification: 5,119 Washington residents affected

    source
  2. May 11, 2020
    Reported to regulator Regulator

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

    source
  3. May 11, 2020
    Reported to regulator Regulator

    MA AG breach notification: 14,997 Massachusetts residents affected

    source
  4. June 12, 2020
    Reported to regulator Regulator

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

    source
What a Washington notice means

Governed by RCW 19.255.010. Notice to the Attorney General is required when a breach affects more than 500 Washington residents.

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

Washington breach-notification register ↗

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-IA

Disclosed
May 1, 2020

Timeline

  1. May 1, 2020
    Reported to regulator Regulator

    IA AG breach notification: an unknown number of Iowa residents affected

    source
What a Iowa notice means

Governed by Iowa Code §715C.2. Notice to the Attorney General is required within five business days of notifying consumers, for a breach requiring notification to more than 500 Iowa residents.

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

Iowa breach-notification register ↗