BreachCensus

MICROSOFT CORP

public companyTechnologyUnited States of America

MICROSOFT CORP is a technology organisation in United States of America. It appears on an SEC 8-K filing with 2 confirmed incidents; the most recent notice was filed on January 19, 2024.

Data as of September 6, 2026.

Confirmed incident

US

Disclosed
January 19, 2024

Timeline

  1. January 19, 2024
    Acknowledged by organisation Self-reported

    Form 8-K Item 1.05 filed 2024-01-19

    source
  2. March 8, 2024
    Acknowledged by organisation Self-reported

    Form 8-K/A amendment

    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. July 26, 2026
    Claimed by threat actor (unverified) Claim

    Ransomware leak-site claim (ransomware_live)

    source