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Troubleshooting Question

Windows Powershell - What defines a signed script?

Last Modified: 2020-12-10
I'm looking to increase the security of my Windows 10 endpoints by restricting the type of Powershell scripts that can run. I found the GPO setting to do this. I can set it so it only allows signed scripts, but that begs the question, how you sign a powershell script (so my own scripts will still run) and what defines a signed script? What type of protection does this really buy me? Can a bad actor just sign his own script so that if it can get on the endpoint, it will still run even with the script GPO setting in place? How does Microsoft know what scripts to trust and what ones to not trust?

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Peter HutchisonSenior Network Systems Specialist
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