Mac OS Monterey says the application is damaged

[audioplanet]

When I try to run the app, the system says the app is damaged.

[DropSnorz]

Hello @audioplanet !

Unfortunately, OwlPlug is not notarized (#31) by Apple, so you are facing this annoying message 😢
You can try workaround described on this page to run the app : https://github.com/DropSnorz/OwlPlug/wiki/Troubleshooting

Long even before Catalina macOS has been marking files that are downloaded from the internet with a filesystem attribute. It seems that from 10.5 (Leopard) a File Quarantine was introduced. However, from Catalina and up, it seems the protection has been upgraded and you won't be able to simply run anything you've downloaded. More info here

Open a Terminal and run the following command:

sudo xattr -rd com.apple.quarantine /Applications/OwlPlug.app/

Restrictions for macOS Ventura users are far heavier for non-notarized app. The procedure seems to be the following for Ventura (but needs confirmation)

• Attempting to run OwlPlug may show a window explaining it cannot be opened because "Apple cannot check it for malicious software." Click Ok.
• Open System Preferences and select Security & Privacy.
• If the padlock in the bottom left is locked, click it and authenticate to unlock it.
• Next to the message explaining the app "was blocked from use because it is not from an identified developer," click Open Anyway.
• Close System Preferences.
• Run the app.
• A notice will reiterate the warning about an inability to check if it is malicious each time you run the app. Click Open.