Mircosoft Defender complaining the software is not signed

[MaartenKoller]

Windows is not permitting an install for me (enterprise) due to:

PS C:<user>\Downloads\harness-bundle_3.2.0_windows_amd64> Get-AuthenticodeSignature .\harness.exe

Directory: C:\<user>\Downloads\harness-bundle_3.2.0_windows_amd64

SignerCertificate Status Path

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                                      NotSigned                              harness.exe