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    <dei:AmendmentDescription contextRef="P01_01_2022To03_31_2022">Unisys Corporation is filing this Amendment No. 1 on Form 10-Q/A (this amendment) to its Quarterly Report on Form 10-Q for the period ended&#160;March&#160;31, 2022, originally filed with the Securities and Exchange Commission (SEC) on April 27, 2022 (the&#160;original filing) to address management&#x2019;s re-evaluation of disclosure controls and procedures and to reflect the identification of material weaknesses in the company&#x2019;s disclosure controls and procedures and internal control over financial reporting. The material weaknesses did not result in any change to the company&#x2019;s consolidated financial statements as set forth in the original filing. This amendment is limited in scope to make the following changes to the original filing: &#160;


&#160;
&#x2022;
&#160;
To amend Part I - Item 4. Controls and Procedures related to the effectiveness of our disclosure controls and procedures and internal control over financial reporting. &#160;


&#160;
&#x2022;
&#160;
To amend Part II - Item 1A. Risk Factors to add an additional risk factor regarding the potential adverse impact that the failure to remediate the material weaknesses could have on our timely and accurate reporting of financial results and to amend a risk factor in the original filing regarding the potential adverse impacts of cybersecurity incidents and vulnerabilities. &#160;


&#160;
&#x2022;
&#160;
To amend Part II - Item 6. Exhibits to include currently dated certifications from the company&#x2019;s Principal Executive Officer and Principal Financial Officer as required by Sections 302 and 906 of the Sarbanes Oxley Act of 2002, which certifications are filed herewith as Exhibits 31.1, 31.2, 32.1 and 32.2. This amendment has not been updated or amended to give effect to any subsequent events beyond those that existed as of the original filing date and should thus be read in conjunction with the original filing and any of the company&#x2019;s other filings with the SEC subsequent to the original filing, together with any amendments to those filings. Other than the filing of the information identified above, this amendment does not modify or update the disclosure in the original filing in any way. </dei:AmendmentDescription>
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