SlickEdit installer is code signed and is identified. Code signing certificate was purchased from Apple. Not sure why Apple provides very poor messages.
So I hit this myself today. I'm starting work at a new place, and they have a policy set to not allow unidentified developers. Unlikely to change it. Anything i can do to work around it?
The dmg is not notorized. The applications is code signed though.
Go to System Settings>Privacy & Security
Scroll down to Security. Set "Allow applications downloaded from" to "App Store and identified developers".
Below this setting you should see a message like this: "SlickEditPro2023" was blocked from use because it is not from an identifier developer. Click "Open Anyway"
When I try to start SlickEdit, OSX reports, "SlickEditPro2023 can’t be opened because Apple cannot check it for malicious software. This software needs to be updated. Contact the developer for more information."