Description: Test-Authenticode is a PowerShell cmdlet used to verify the digital signature of a file. This process is crucial for ensuring the integrity and authenticity of a file’s content, especially in environments where security is a primary concern. By verifying the digital signature, Test-Authenticode ensures that the file has not been altered since its creation and that it comes from a trusted source. This cmdlet is part of the security infrastructure in various operating systems and is commonly used in system administration and software development. The digital signature relies on cryptography, allowing users and administrators to validate the author’s identity and the file’s integrity. Test-Authenticode provides detailed information about the signature’s status, including whether it is valid, has expired, or has been revoked, enabling informed decisions about executing potentially dangerous files. In summary, Test-Authenticode is an essential tool for maintaining security and trust in the use of files across different platforms.