PPTP
Simply because it employs 128 bit keys to safe traffic, PPTP or Point-to-Point Tunneling Protocol is recognized as a much less secure process than the others. However, for a large amount of users, this may already perform, specially when they connect to a VPN only for personal use.
L2TP
An even more secure option is Layer 2 Tunneling Protocol or L2TP, because it works together with IPSec protocol which uses better guarded security methods than what is used in combination with PPTP. The mixture of the 3DES encryption algorithm and also a 168 bit keys are exactly what create L2TP security stronger.
SSTP(openvpn)
Secure Socket Tunneling Protocol or SSTP is surely the most guarded of all methodologies, since it is a SSL VPN project, and uses 2048 bit encryption keys, along with authorization certificates.
Simply because it employs 128 bit keys to safe traffic, PPTP or Point-to-Point Tunneling Protocol is recognized as a much less secure process than the others. However, for a large amount of users, this may already perform, specially when they connect to a VPN only for personal use.
L2TP
An even more secure option is Layer 2 Tunneling Protocol or L2TP, because it works together with IPSec protocol which uses better guarded security methods than what is used in combination with PPTP. The mixture of the 3DES encryption algorithm and also a 168 bit keys are exactly what create L2TP security stronger.
SSTP(openvpn)
Secure Socket Tunneling Protocol or SSTP is surely the most guarded of all methodologies, since it is a SSL VPN project, and uses 2048 bit encryption keys, along with authorization certificates.
(Source:vpncorner.jimdo.com)
