What is VPN Blocking?

VPN blocking is a technique used by certain websites, governments, and companies to filter and limit users' access to the internet via a particular mechanism known as Virtual Private Networks (VPNs). To understand VPN blocking, the concepts of VRNs must first be clarified. A VPN is a technology that hides a user's actual internet protocol (IP) address and ensures online privacy and anonymity by creating a secure, encrypted connection. The user's data get’s transferred within a protected tunnel, which makes it harder for cybercriminals, hackers, or any interested party to monitor online activity or steal sensitive information.

Notwithstanding its multiple beneficial functionalities, VPNs have been notably involved in shadier operations over the internet. This is predominantly due to their capability to bypass cybersecurity measures like geo-restrictions and provide anonymous access over the internet. It is here that the idea of VPN blocks emerges, serving as a countermeasure to limit VPNs' capabilities and control potential misuse.

VPN blocking operates at several levels and using various methodologies. First, at the IP address level, the entity behind the VPN blocks may ban the IP addresses linked with known VPN servers. Every device linked to the internet has an IP address. Websites often maintain a database of IP addresses determined to belong to VPN providers and will block traffic from these addresses.

At the deep packet inspection (DPI) level, the blocking entity may analyze the data packets sent via the internet to discern whether VPN encryption protocols are being employed. These techniques can differentiate VPN traffic from other types, thus hindering encrypted data communication and flaunting traditional cybersecurity efforts.

At the port level, organisations may choose to block specific ports used by VPN protocols and thus prevent the use of VPNs over their network. Blocking a VPN at a port level can be particularly effective against basic or inexpensive VPNs that do not utilize randomized or customizable port settings.

VPN blocking is particularly prevalent in countries with rigorous internet censorship. It represents a means of control over internet content by suppressing access to geo-restricted websites or international content protected by copyright legislations. Schools, universities, businesses and certain public Wi-fi networks also commonly employ VPN blocking to ensure cybersecurity and discourage inappropriate usage.

Network restrictions or VPN blocking increase vulnerability to hackers and cybercriminals, as they may exploit the limited protection available when browsing the internet without a VPN. By investing in advanced, premium VPNs, individuals can typically circumvent VPN blocking, since these services come equipped with advanced features, such as uncensored servers or obfuscated servers.

Companies focus heavily on effective cybersecurity and antivirus practices because they understand that today's digital landscape is populated with numerous threats that can disrupt business, damage relations, or lead to resource losses. While VPN usage is one aspect of cybersecurity plans, VPN blocking is also important. VPN blocking as a cybersecurity measure should align with understanding risks, conforming to regulatory requirements, planning for effective responsiveness, and adjusting existing measures to fit the rapidly evolving cyber threat environment.

While it may seem advantageous in specific contexts such as security measures and access restrictions, VPN blocking can also jeopardize online security and digital freedom. Indeed, banishing the availability of secure connections and private browsing capabilities leaves internet user credentials susceptible to cybercriminals. It's a controversial practice that walks a fine line between maintaining control, protection, and enabling free access to the internet.

Although a VPN can be a useful tool to ensure online safety, some circumstances necessitate VPN blocking. like all cybersecurity tools, VPN blocking should continually be reassessed and adjusted according to a company's or individual's specific requirements and changes in the cybersecurity landscape to strike the appropriate balance between security and internet accessibility.

VPN Blocking FAQs