What are the different kinds of VPNs?

There are three protocols that power VPNs:

PPTP IPsec L2TP running under IPsec

PPTP should be a last-resort option, only used if you have no other choice. The acronym is short for Point-to-Point Tunneling Protocol. It should only be used if you are a legacy device that cannot support newer software. IPsec is a good protocol, especially if you are using Apple devices such as iPhones and Mac laptops. L2TP running under IPsec sends LT2TP packets with IPsec’s confidentiality, integrity, and authentication. The combination of these two is one of the most popular protocols.

How VPNs work

VPNs work by connecting your computer to a remote server via an encrypted “tunnel” that shield your information from third parties such as your Internet Service Provider. When you open a VPN app, you can select a server, generally located outside your home country, to use as your remote server. When you connect, the “tunnel” is created.

When you start downloading anything from images to texts to files, those items are sent first to the remote server. From there, they are encrypted and pass back through the secure tunnel to your computer to be decoded again.

In Korea, telecom giants Inet, Dacom, and Korea Telecoms all have VPN products that are sold outside of Korea and provide Internet supplementary services. They help Korean companies and individuals maintain their privacy alongside firewalls, routers, and gateways. Along with the three Hanaro Telecom, PS INAT, and Equant provide VPN services to enterprises in Korea. There are three industry standard setters in Korea. They are:

What to look for in a good VPN

If you are seeking to use VPNs for security purposes or for visiting banned websites, there are several criteria you should seek when comparing VPNs to use.

Top International VPNs

If you’re looking for a great VPN to use while working or living in Korea, there are several that stand out from the rest.


One of these is NordVPN, currently celebrating its 10th year in business. NordVPN has more than 4,400 servers spread across 60 countries. It also features Double VPN tunnelling which is like having an extra avenue to send and receive data from. Get it Now


When speed is essential to your operation, a great choice is ExpressVPN, which routinely tests for the fastest VPN connection on the market. ExpressVPN has 24/7 customer support with Live Chat functions and ultra fast servers in 94 countries, meaning there’s something for nearly everybody. Try Now Risk Free

3Private VPN

If security is your top priority, consider PrivateVPN, which has 2,048-bit encryption, an automatic kill switch, and built-in leak protection to ensure what is in your system stays in your system. Get it Now