Install Apps from 3rd party in macOS Sierra

When installed apps from 3rd party or Internet download, macOS always prompt “Downloaded .app is damaged and can’t be opened”.

The solution is really simple:

Run the following command before launching the app:

sudo spctl --master-disable

Launching the app and finish installing it, and then run the following command to re-enable the restriction:

sudo spctl --master-enable

That’s it.