Can't Install: VPN.pkg Is Damaged
When installing the CU VPN software on a Mac, you see a message saying the VPN.pkg is damaged.
This article applies to: CU VPN
When installing the Macintosh CU VPN client, you receive an error that the vpn.pkg file is damaged.
How to Solve this Problem
The error message is misleading; the installation package is not damaged. However, a security setting on your Mac is preventing the client installation. To solve this problem, change your Security & Privacy Settings to allow apps to be downloaded from anywhere.
To change the setting, select the Apple menu -> System Preferences -> Security & Privacy, then, under Allow apps downloaded from, select Anywhere.