I'm trying to install the Tunnelblick open source VPN client on my Mac running OS X 10.10.5.
When I try to install the dmg I get the following error (see attached screenshot).
How would I make my
/usr folder secure? The account I use by default is my main user account, but also the admin account for the computer. Would it be a question of making a my main user account a standard user and setting up a separate admin account?