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XCCDF
Microsoft Internet Explorer 11 Security Technical Implementation Guide
SRG-APP-000210
Software must be disallowed to run or install with invalid signatures.
Software must be disallowed to run or install with invalid signatures.
An XCCDF Rule
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Software must be disallowed to run or install with invalid signatures.
Medium Severity
Microsoft ActiveX controls and file downloads often have digital signatures attached that certify the file's integrity and the identity of the signer (creator) of the software. Such signatures help ensure unmodified software is downloaded and the user can positively identify the signer to determine whether you trust them enough to run their software.