Resolving the 'This Root Certificate is Not Trusted' Error on macOS

If you encounter the 'This root certificate is not trusted' error, it typically indicates that the Securly SSL certificate is not installed on your macOS device.

To resolve this issue, you need to install the Securly SSL certificate. Follow the steps below:

1. Download the Securly Certificate CRT file. (securly_ca_2034.crt)
2. Open Finder and navigate to Applications > Utilities > Keychain Access.
3. In the left-hand column, select System.
4. Go to File > Import Items and import the downloaded certificate file into the System keychain.
5. Alternatively, you can automate the installation process via MDM by downloading the executable file linked at the end of this article.

Once the certificate is installed, you should no longer see the 'This root certificate is not trusted' error.