8-K/A

 UNITED STATES
 SECURITIES AND EXCHANGE COMMISSION
 WASHINGTON, D.C. 20549

 FORM 8-K /A

 CURRENT REPORT
 PURSUANT TO SECTION 13 OR 15(D)
 OF THE SECURITIES EXCHANGE ACT OF 1934
 Date of Report (Date of earliest event reported) January 17, 2024

 Microsoft Corporation

 Washington

 001-37845

 91-1144442

 (State or Other Jurisdiction
 of Incorporation)

 (Commission
 File Number)

 (IRS Employer
 Identification No.)

 One Microsoft Way, Redmond, Washington

 98052-6399

 ( 425) 882-8080
 www.microsoft.com/investor

 Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

 Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 Securities registered pursuant to Section 12(b) of the Act:

 Title of each class

 Trading
Symbol

 Name of exchange
 on which registered

 Common stock, $0.00000625 par value per share

 MSFT

 NASDAQ

 3.125% Notes due 2028

 MSFT

 NASDAQ

 2.625% Notes due 2033

 MSFT

 NASDAQ

 Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company
 If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

 EXPLANATORY NOTE
 Microsoft Corporation (the "Company," "we," or "our") is filing this Form 8-K/A as an amendment to the Current Report on Form 8-K filed by the Company with the U.S. Securities and Exchange Commission (the "SEC") on January 19, 2024 (the "Original Filing").

 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, which are described in our filings with the SEC. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and the Company undertakes no duty to update any forward-looking statement to conform the statement to actual results or changes in the Company's expectations.

 Item 7.01.

 Regulation FD Disclosure

 On March 8, 2024, the Company posted a blog regarding the incident. A copy of the blog is furnished as Exhibit 99.1 to this report. In addition, as part of our ongoing commitment to responsible transparency to our customers and other stakeholders, we may provide additional updates regarding the incident and relevant developments directly to customers or at Microsoft blogs located here:  and
 In accordance with General Instruction B.2 of Form 8-K, the information in this Item 7.01 and Exhibit 99.1, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

 Item 9.01.

 Financial Statements and Exhibits

 (d) Exhibits:

 99.1

 Microsoft Blog dated March 8, 2024 titled "Update on Microsoft Actions Following Attack by Nation State Actor Midnight Blizzard"

 SIGNATURE
 Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 MICROSOFT CORPORATION

 (Registrant)

 Date: March 8, 2024

 /S/ Keith R. Dolliver

 Keith R. Dolliver

 Corporate Secretary