256-bit AES — the same standard that protects banking transactions

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VPN: What It Is and How It Works

Updated: March 24, 2025

Secure tunneling is a technology that creates an encrypted channel between a device and a remote server. Let’s understand why an average user needs this.

Term Explanation

The abbreviation stands for Virtual Private Network - literally “virtual protected channel.”

The word virtual means the connection is created programmatically over a regular network. The word private indicates data encryption. The word network describes the type of link between two endpoints.


Operating Principle

Standard Connection

Traffic usually travels an open route: device - internet service provider - global network - target resource.

With this setup, the carrier sees addresses of visited resources, connection times, volume of transmitted information. The target resource receives the user’s real address.

Connection Through Secure Tunnel

Tunnel activation changes the route: device - encrypted channel - protection provider server - global network - target resource.

The carrier sees only the connection to the protection provider server and volume of encrypted flow. Contents and final addresses are hidden. The target resource receives the server address, not the user’s.


Practical Applications

Transmission Confidentiality

Encryption transforms information into an unreadable set of characters. An interceptor sees a meaningless data stream.

Relevant when transmitting:

  • Account credentials
  • Payment details
  • Work documents
  • Personal correspondence

Connection Anonymity

Address replacement hides real location from external observers. The carrier doesn’t know which resources are visited. Ad networks cannot track behavior profiles.

Security in Public Networks

Open access points in public places don’t encrypt traffic. An attacker in the same network can intercept data. Secure tunneling closes this vulnerability.

PlaceRiskSolution
CafeOpen WiFiVPN encrypts traffic
HotelShared networkVPN protects data
AirportPublic networkVPN hides activity

Protection in Home Network

Even home internet isn’t completely safe. VPN adds an extra layer of protection from:

  • Traffic interception by ISP
  • Tracking by ad networks
  • Behavior analysis

What Different Parties See

ObserverWithout ProtectionWith Protection
CarrierResource addresses, time, volumeProtection server address, volume
Target resourceReal address, locationServer address, server location
Others in local networkOpen trafficEncrypted flow

Modern Protocols

Protocol determines how the channel is created and encrypted.

ProtocolCharacteristics
VLESS+REALITYHigh speed, masquerading as regular traffic
WireGuardMinimal latency, compact code
ShadowsocksProven technology, wide compatibility
Hysteria2Optimization for unstable channels

Technology Limitations

Secure tunneling is not a universal solution.

Doesn’t protect from:

  • Malicious software
  • Fake resources (phishing)
  • Device compromise
  • Voluntary data sharing

Doesn’t provide:

  • Absolute anonymity
  • Protection from targeted attacks

Solution Types

Corporate

Provide remote employees access to company internal resources. Configured and maintained by IT department.

Consumer

Designed for private individuals. Provide protection and privacy. Work on subscription basis.


Selection Criteria

When evaluating a provider, pay attention to:

Data storage policy: a reliable provider keeps no activity logs.

Server geography: more locations means more options.

Protocols used: modern solutions ensure high speed and security.

Jurisdiction: registration country legislation affects provider obligations.


Common Questions

Does it affect connection speed? Encryption and additional routing create slight delay. Quality solutions lose up to fifteen percent of original speed.

Is protection needed in home network? If privacy from provider matters - yes. For regular use - optional.

Is it safe to use on public WiFi? VPN is the best way to protect on public networks. Without it, your traffic is visible to the network administrator.


Summary

Secure tunneling is a tool for traffic encryption and location concealment. Used for confidentiality and safe operation in public networks.

Tainet uses current protocols for maximum protection with minimal speed impact.