VPN Explained: How Virtual Private Networks Keep You Secure Online!

VPN Explained

The line between reality and electronic media is gradually blurring. As we spend more time in the digital world, securing our online activities holds considerable importance. Virtual Private Networks (VPNs) have become a common tool used by individuals as well as businesses to safeguard their presence on the internet.

This article, VPN Explained, seeks to explore VPNs – how they work, and most importantly- how they keep us safe whilst working on the internet. VPNs provide secure and encrypted connections over networks transmitted through several servers worldwide which makes it difficult for intruders or hackers to gain access to sensitive data.

Are you anxious about sending financial information over an unguarded wireless network? Or maybe you don’t want anyone obtaining your personal files while others monitor your browsing history.

A good option is locking down using a VPN, ensuring that all of this remains secure by encrypting it at every step — VPNs are not only cost-effective but also efficient tools for keeping ourselves protected online!

So what is a vpn?

What is a VPN?

Virtual Private Network (VPN) technology creates a secure and encrypted connection to protect internet traffic. With VPNs, users can safely connect over public networks or unsecured Wi-Fi hotspots without compromising their security.

When you use a VPN, the private-network is connected remotely through the internet. This way all of your communication with the VPN server will be routed via an encrypted tunnel securing privacy, preventing unauthorized access, and more importantly offering unprecedented protection while using any device on public networks.

How does a VPN work?

When someone connects to a VPN, their device establishes a connection with the VPN server. The point of this is to encrypt all internet traffic before it leaves the device using special client software. With this powerful encryption in place, anyone who intercepts or tries to decipher data from your network will be thwarted.

The secure tunnel transports encrypted data through a virtual private network until it reaches the VPN server.A decryption process happens once that data has arrived at its intended destination on the Internet. This decrypting process can reverse incoming data too; when sent through this secure tunnel, data is first decrypted by the VPN server and then again decrypted on your user-device for accessibility.

Encryption and Tunneling:

Encryption protocols:

Encrypting and deciphering the data transmitted via a VPN is performed using specific algorithms known as encryption protocols. Commonly used protocols include:

  • OpenVPN: OpenVPN uses an open-source application to provide top-notch security with flexibility, offering numerous encryption and authentication options.
  • IPsec: Due to its reputation for providing powerful encryption, IPsec is often employed in conjunction with other protocols. Guarantees confidentiality, integrity and authenticity of information transmitted through it.
  • WireGuard: This protocol provides excellent security measures while remaining fast yet lightweight compared to others. Despite being relatively new, WireGuard sets high standards when it comes to efficiency without sacrificing safety.

Tunneling protocols:

When we’re sending encrypted data through the internet, it must be encapsulated and transported securely using tunneling protocols. We have various options available, with some of the most commonly used including:

  • PPTP protocol (Point-to-Point Tunneling Protocol): This is one of the oldest tunneling protocols around and is known for being compatible with multiple operating systems while also being easy to set up. However, because it’s an old system that uses weaker encryption standards compared to newer protocols, PPTP is considered less secure.
  • L2TP/IPsec protocol (Layer 2 Tunneling Protocol/Internet Protocol Security): It combines Layer 2 Tunneling Protocol’s mobility features with Internet Protocol Security’s strong encryption to create a safer connection that provides privacy and security.
  • SSTP protocol (Secure Socket Tunneling Protocol): Microsoft-developed SSTP protocol promises secured SSL/TLS encryption suite which results in stronger security levels. This often used as a result of Windows Operating systems’ popularity.

How VPNs Keep You Secure:

Data encryption

Data encryption is one of the critical ways in which VPNs work to ensure your online security. The transmission of information is disrupted using complicated codes that hackers or fishermen cannot easily decipher, regardless of whether they plan on stealing your identity or spying on your traffic activity.

On the other hand, VPNs hide users’ IP addresses, a unique identifier utilized to monitor web behavior and approximate physical location tracking. By establishing a connection with a virtual private network server, shields are put up: allowing masking so it’s difficult for advertisers or websites to view anyone’s online activities. Overall Internet usage remains private and confidential while maintaining anonymity for everyone browsing via this protected connection method.

Protection from hackers and snoopers

To protect your online activity from snoopers or hackers, a VPN is the solution you need. A Virtual Private Network secures all internet traffic by passing it through an encrypted tunnel. This encrypting of data protects sensitive information contained in passwords, financial transactions to personal communication from malicious people.

VPNs make it difficult for anybody who wants to gain unauthorized access to your information. 

Online privacy concerns have made many governments start monitoring citizens’ activities online actively. With VPNs, shielding against government surveillance becomes easy since they help secure your internet traffic and prevent prying eyes from gaining insight into what websites you visit and content browsed.

By using a VPN service, one can remain protected when browsing private material without fear of other parties gaining access or spying on their activity due to the security layers added by these services.

Final Thoughts

Virtual Private Networks (VPNs) are significant in enhancing online security and privacy for individuals, as well as businesses. They offer protection against potential threats such as hackers, government surveillance, and data breaches by masking IP addresses with encrypted data while providing secure connections. 

Whether using them for personal or business purposes, VPNs provide several advantages including remote network access, bypassing geo-restrictions easily and providing a shield on public Wi-Fi networks. 

When selecting the appropriate VPN option it is crucial to consider some factors like encryption protocols, server network capacity, and logging policies.

To safeguard your online activities effectively it’s essential to understand these tools’ concept completely because they facilitate better-informed decisions.Stay safe on the internet by keeping your privacy protected through reliable VPN services allowing you to enjoy browsing securely without any concern about theft of any kind.

VPN Explained article and permission to publish here provided by Daria Trubichyna. Originally written for Supply Chain Game Changer and published on May 17, 2023.