Oct 31, 2019 Use the Mac operating system that came with your Mac, or a compatible newer version If you try to use an incompatible macOS, your Mac might not finish starting up, or it might behave unexpectedly. If you try to start up your Mac from a hard disk, network volume, or Time Machine backup that contains an incompatible version or build of macOS. OpenVPN is always the recommended protocol for Mac OS X or any operating system really. OpenVPN doubled with strong ciphers is very powerful against the NS and third party agencies trying to decrypt data and snoop on your traffic. Providers should offer three protocols, those include PPTP, L2TP/IPSec,. VyprVPN is a reliable choice among the best VPN software for Mac options. VyprVPN has hundreds of thousands of IP addresses and will give you a different one every time you get online, thus ensuring no one will be suspicious over the IP you use. You will also be able to protect your privacy online and bypass restrictive networks.