which process is used to protect transmitted data in a vpn?

The increase in high-scale cyberattacks and data breaches is alarming for businesses operating in the digital environment. Every business and even person has some confidential information that needs to be secured to mitigate any potential risks. For this purpose, there should have secure infrastructure and measures that help streamline the practices in such a way that the private network could be protected from any cyber attack and end up compromising the Personally Identifiable Information (PII) of individuals and the sensitive organizational data.

The network in which data files are shared should e protected by all means. VPNs are used by every business entity and device to ensure safe communication across the channels. But, there are some serious questions that arise when you are in regular use of a VPN for the purpose of sound and robust data sharing. These questions include:

  • Does VPN protect your IP address
  • Does a VPN protect you from hackers
  • Does VPN protect you from viruses
  • How does a VPN protect you from your ISP

All these queries are actual. The reason is that hackers are becoming smarter with every passing day. VPNs serve various purposes for every department in the company. Amid the loopholes in the system, the measures should be stringent enough that the attacks could be mitigated. This article describes the role of VPN in protecting the network and what processes are techniques are used to make VPN sound enough to use for daily activities.

VPN protect your IP address

VPNs and their Role

A virtual private network or a VPN is an Internet security service. It allows its users to ensure secure access even when connected to the private network. VPNs employ strong encryption techniques to protect the network and ensure a secure connection in the network where loopholes exist.

VPNs play a vital role in protecting corporate data and ensuring controlled access. Authorized access makes sure that no unauthorized entity is trying to access your data. VPNs ensure the built-in capability of protecting the entire infrastructure in such a way that identity and access management (IAM) solutions could be implemented seamlessly.

VPNs and their Role

How VPNs Protect Transmitted data?

VPNs are virtual. They are used by organizations and many remote workers to get connected across the globe. The workers are also given access to the VPN of the organization to utilize the company resources to perform certain tasks. However, the approach is necessary but it is prone to many problems that can lead to high-scale data breaches and cyberattacks. To ensure controlled access to confidential data, VPNs employ the following processes that help secure the network from attacks.


Encryption is the most popular yet useful technique to protect the data transferred through VPNs. It is a process of scrambling the data in such a way that only authorized entities could access and get meaning from the information. The readable data is encrypted using a strong cryptographic hash function that hackers could not decipher. The random data is converted into an unreadable form and thus encrypted with a secret code.

For encryption of data, certain technologies are used based on the scale and nature of the VPN such that the data could be protected by all means. Some high-end encryption algorithms are used to protect the network based on their scale and vulnerability concerns. 

  • Triple DES or 3DES
  • RSA
  • AES
  • Blowfish
  • Twofish

Encryption techniques keep on revolutionizing as the hackers start becoming smarter. The methods and processes vary and are made more complex to align with the requirements of the digital world. 

Web Gateways:

Web gateways are also secured with encryption to ensure protection over both the sending and receiving end of the communication. The web gateways and firewalls are installed that help filter out the traffic coming from the source. The traffic is identified if it is honest or not. The honest nodes are allowed to pass on whereas the dishonest nodes are disconnected and are not allowed to enter into the network. Company-controlled networks are made secure to prevent the data from any breach. Moreover, a software-defined perimeter (SDP) is implemented to keep the organization’s internal infrastructure as well as the sensitive information invisible to the users that are not authorized. 

When the information is sent from the source to the destination, a gateway is involved in between the communication. When the data is sent from the sender side, the gateway encrypts that data. That data then passes through the channel in its encrypted form. At the receiver side, there is another gateway attached. The data is first decrypted from that receiver gateway and passed on to the network which is then available in the readable form for the receiver. In between the gateways, the data could not be read by any entity.


Another process that is used to protect the data transmission in VPN is called tunneling. There are multiple secured protocols that are used for the purpose of secured communication over the channels. The popular protocol used for tunneling is the PPTP protocol and L2TP protocol. Some advanced VPNs used protocols like SSTP that help ensure secure transmission of data over both ends. A VPN tunnel is established that has the main function of encrypting the data between the two VPN on any device you are using.  When the device is connected to some different network, tunneling helps secure your IP address and shows as if an anonymous user is using the browser.

There is a wide range of VPN service providers that help encrypt the data in such a way that the communication could be made stronger. The traffic is monitored to make sure that no malevolent activity could occur that can introduce any breach in the data. From confidentiality to data integrity and data privacy, VPNs serve the ultimate purpose of protecting data by all means.

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