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What is a VPN

A VPN ( Virtual Private Network ) is a link technology used to connect one or more computers to a private network using the Internet. As we explained in the article about what a VPN is for, companies often use these networks so that their employees, from their homes, hotels, etc., can access corporate resources that they otherwise would not be able to. However, connecting an employee’s computer to corporate resources is only one function of a VPN.

VPN protocols

Moreover, as you might guess, private and confidential information passes through a VPN that, in the wrong hands, could be detrimental to any company. This is further aggravated if the employee connects using unprotected public Wi-Fi. Fortunately, this problem can be mitigated by encrypting the sent and received data. To achieve this goal, the following protocols can be used:

  • IPsec ( Internet Protocol Security ): allows for improved security through robust encryption algorithms and a complete authentication system. IPsec has two encryption methods, transport mode and tunnel mode. It also supports 56 bit and 168-bit encryption (triple DES).


  • PPTP /MPPE: technology developed by a consortium made up of several companies. A PPTP supports various VPN protocols with 40 bit and 128-bit encryption using the Microsoft Point to Point Encryption (MPPE) protocol. The PPTP by itself does not encrypt information.


  • L2TP /IPsec (L2TP over IPsec): technology capable of providing the level of protection of IPsec over the L2TP tunnel protocol. Like PPTP, L2TP itself does not encrypt information.


Protecting the information that travels through a VPN is encryption; however, verifying that it remains intact is just as important. To achieve this, IPsec uses a mechanism that if it detects any modification within a packet, it proceeds to discard it. Protecting the confidentiality and integrity of information using a VPN is suitable for browsing public and insecure Wi-Fi even if you don’t want to access a corporate resource.

Finally, those home users who wish to use a VPN network can choose between free and paid services. It is essential to mention that free ones usually work slower than ones that are not. We also recommend reading our Wireless Network Security Guide, which reviews other steps you can take to use a public wireless connection more securely.

What is ExpressVPN

What is ExpressVPNExpressVPN is a Virtual Private Networks that is very promising among those available today due to its characteristics.

Shortly and due to the increase in privacy and connectivity needs, VPNs may be as necessary as the Internet itself.

This article will discuss topics of interest about this ExpressVPN, and some information may help you decide to hire these virtual protection and security services.

However, expressVPN is Virtual Private Network software that enables data protection against hackers and identity thieves. With this VPN, the user’s IP address can be hidden without third parties being able to observe what is being done within the network.

An essential feature of ExpressVPN is that it allows you to become anonymous on the web in seconds. Different devices can be linked simultaneously without affecting the navigation in each of them since each would work with other servers, all depending on the user’s Internet connection quality.

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However, expressVPN, you can access content without any restrictions, access videos, music, social networks, blocked pages in countries of origin and many other exciting functions.

Because of ExpressVPN’s unlimited bandwidth design, you can be on the net with high data download speeds. This is why it gets its name “express”. It has more than 140 server locations deployed worldwide, being present in 94 countries.

In customer service, it is 24/7, being one of the most efficient in the VPN market. Its standard between the different platforms is simply excellent.

There are very few cons to ExpressVPN, but the ones that can be mention are that it does not have a free trial available and is not one of the cheap VPNs on the market.

A VPN takes privacy very seriously, so they maintain a “No Logs” policy without the user’s browsing activity being seen later. The only thing they keep is the information of the payment records, but this can be avoid with the use of cryptocurrencies.

Advantages of ExpressVPN

  • User-friendly experience.
  • Accept different payment methods, such as Paypal, Credit Cards and Cryptocurrencies.
  • 5-minute initial preparation process.
  • Excellent speed.
  • Simultaneous connections of 5 devices.
  • 30-day money-back guarantee.

Disadvantages of ExpressVPN

  • One of the most expensive VPNs on the market.
  • It does not offer more information in its “About” section

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