Some of the more robust VPN protocols take more resources. For example PPTP VPN is 128 bit encryption (good for most users) while secure OpenVPN is 256 bit (the same level of security that banks and credit card sites use). Why do they offer different types of VPN protocols? First of all, some protocols are more secure than others. Selecting a VPN provider shouldn’t be simple but then you look at all the vendors and include all the different VPN protocols that they offer- it doesn’t help…with all the different services on the market, some providers support several VPN protocols.
