BreachCensus

Honeywell International Inc.

ManufacturingUnited States of America

Honeywell International Inc. is a manufacturing organisation in United States of America. It appears on the Washington State Attorney General breach-notification register with 3 confirmed incidents; the most recent notice was filed on September 13, 2023.

Data as of September 6, 2026.

Confirmed incident

Filed in WA and IA — Hacking/IT Incident

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

Occurred
May 27, 2023
Disclosed
September 13, 2023

Timeline

  1. September 13, 2023
    Reported to regulator Regulator

    WA AG breach notification: 2,194 Washington residents affected

    source
  2. September 13, 2023
    Reported to regulator Regulator

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

    source
What a Washington notice means

Required under 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 ↗

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. July 12, 2023
    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. October 2, 2021
    Claimed by threat actor (unverified) Claim

    Ransomware leak-site claim (ransomware_live)

    source