Latest / Federal (SEC) / March 2024

MICROSOFT CORP

MICROSOFT CORP notified SEC Form 8-K on Mar 8, 2024 of a data breach. Data exposed: Financial / bank account, Email address.

All 2 filings by MICROSOFT CORP, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
MICROSOFT CORP
Source
SEC Form 8-K · source record
Date reported
Mar 8, 2024
Date(s) of breach
Not stated
Residents affected
Not published by this source
Data exposed
Financial / bank account Email address
Notice letter
Form 8-K filing
Discovered
November 2023, as stated in the letter
"Material Cybersecurity Incidents As disclosed in the Original Filing, the Company detected that beginning in late November 2023, a nation-state threat actor had gained access to and exfiltrated information from a very small percentage of..."
First seen by BreachTally
2026-11-12 23:16 UTC
Ticker
MSFT

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

First seen by BreachTally at 23:16 UTC on Nov 12, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.

Item 1.05 excerpt

Item 1.05. Material Cybersecurity Incidents As disclosed in the Original Filing, the Company detected that beginning in late November 2023, a nation-state threat actor had gained access to and exfiltrated information from a very small percentage of employee email accounts including members of our senior leadership team and employees in our cybersecurity, legal, and other functions. Since the date of the Original Filing, the Company has determined that the threat actor used and continues to use information it obtained to gain, or attempt to gain, unauthorized access to some of the Company’s source code repositories and internal systems. The threat actor’s ongoing attack is characterized by a sustained, significant commitment of the threat actor’s resources, coordination, and focus. Our active investigations of the threat actor’s activities are ongoing, findings of our investigations will continue to evolve, and further unauthorized access may occur. We have increased our security investments, cross-enterprise coordination and mobilization, and have enhanced our ability to defend ourselves and secure and harden our environment against this advanced persistent threat. We continue to coordinate with federal law enforcement with respect to its ongoing investigation of the threat actor and the incident. As of the date of this filing, the incident has not had a material impact on the Company’s operations. The Company has not yet determined that the incident is reasonably likely to materially impact the Company’s financial condition or results of operations. This Form 8-K contains forward-looking statements, which are any predictions, projections or other statements about future events based on current expectations and assumptions that are subject to risks and uncertainties, wh

Other filings by MICROSOFT CORP

OrganizationSourceStateReportedResidents affectedData exposed
MICROSOFT CORP
Item 1.05. Material Cybersecurity Incidents On January 12, 2024, Microsoft (the “Company” or “we”) detected that beginning in late November ...
SEC Form 8-K US Jan 19, 2024 Not published Financial / bank accountEmail address

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.