BreachCensus

ADT, Inc.

Professional ServicesUnited States of America

ADT, Inc. is a professional services organisation in United States of America. It appears on the Massachusetts Attorney General breach-notification register, the Washington State Attorney General breach-notification register, the Texas Attorney General breach-notification register and the Delaware Attorney General data security breach database with 3 confirmed incidents (4 filings); the most recent notice was filed on July 28, 2026.

Headquarters
Boca Raton, United States
ISIN
US00090Q1031
Wikidata
Q290680

Data as of October 17, 2026.

Confirmed incident

Filed in WA, DE, TX and MA — Unauthorized Access/Disclosure

The same incident was filed separately with 4 jurisdictions within a few days of each other (WA, DE, TX and MA) — shown here as one incident.

Occurred
April 20, 2026
Disclosed
July 28, 2026
Records affected
331,536

Timeline

  1. April 24, 2026
    Reported to regulator Regulator

    DE AG breach notification: 1,231 Delaware residents affected

    source
  2. April 24, 2026
    Reported to regulator Regulator

    DE AG breach notification: 1,231 Delaware residents affected

    source
  3. April 24, 2026
    Reported to regulator Regulator

    DE AG breach notification: 1,231 Delaware residents affected

    source
  4. July 27, 2026
    Reported to regulator Regulator

    MA AG breach notification: 4,540 Massachusetts residents affected

    source
  5. July 28, 2026
    Reported to regulator Regulator

    WA AG breach notification: 5,129 Washington residents affected

    source
  6. July 28, 2026
    Reported to regulator Regulator

    TX AG breach notification: 32,546 Texas 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 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 ↗

What a Texas notice means

Governed by Tex. Bus. & Com. Code §521.053. Notice to the Attorney General is required when a breach affects at least 250 Texas residents.

Note: the published count is a total, not limited to Texas residents.

Texas 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 ↗

Unverified claim

US — Ransomware Attack

This is an unverified claim — it has allegedly happened to this organisation, as posted by a source below, but has not been confirmed by a regulator, a court filing or the organisation’s own disclosure.

Timeline

  1. April 24, 2026
    Claimed by threat actor (unverified) Claim

    Ransomware leak-site claim (ransomware_live)

    source
Unverified claim

US — Ransomware Attack

This is an unverified claim — it has allegedly happened to this organisation, as posted by a source below, but has not been confirmed by a regulator, a court filing or the organisation’s own disclosure.

Timeline

  1. August 23, 2026
    Claimed by threat actor (unverified) Claim

    Ransomware leak-site claim (ransomware_live)

    source