Remove PPTP VPN before upgrading to macOS Sierra & iOS 10

Reasons for the Transition
It has been recently discovered that this form of VPN communication has a number of vulnerabilities. Due to these circumstances, Apple has gone forward by encouraging customers to move on to safe, secure VPN protocols and quit utilizing PPTP for VPN connections.
As this decision was made in part by the release of iOS 10 and macOS Sierra, Apple decided to remove PPTP support completely in order to warn customers of the security holes found in the built-in VPN client. By recommending the usage of other VPN clients, Apple customers can continue to receive reliable service from secure communication protocols.
If one happens to need access to PPTP VPNs, it is possible to utilize a third-party client with macOS Sierra. If one happens to use OS X El Capitan, popular third-party VPN clients (that support PPTP) are VPN Tracker and Shimo.
Other Alternative VPN Networks
If one is at a loss in terms of what VPN protocol they should utilize, more secure protocols have been:
- Cisco IPSec
- IKEv2/IPSec
- L2TP/IPSec
- SSL VPN clients that can be found on the App Stores. Such clients that can be found are SonicWall, Pulse Secure, Palo Alto Networks, Open VPN, NetMotion, MobileIron, F5 Networks, Cisco, Check Point, Aruba, and AirWatch.
If you happen to have difficulties figuring out what VPN is best for you in {city}, feel free to contact {company} via phone at {phone} or email at {email} today.