What a VPN protects, and what it cannot hide

A VPN protects the connection

The main job of a VPN is to create a protected channel between your device and the VPN infrastructure.

Data inside that connection is encrypted. This is particularly useful on networks you would rather not fully trust: public Wi-Fi, a hotel, or anyone else's infrastructure.

Your internet provider or the local network operator still supplies the physical path to the internet and can see that data is moving. What they do not get is the contents of the protected VPN connection in any ordinary readable form.

Once traffic leaves the VPN infrastructure, the connection to a modern site is usually protected further by HTTPS. The two layers do different jobs and work together.

A VPN can change the IP a site sees

In the standard VPN model, a site receives the request from the VPN server and therefore sees its public IP address rather than that of your home or mobile connection.

That reduces how much network data a site gets about your original connection, and it lets you present a different geographic location.

But an IP is only one identifier.

If you are signed in, the site knows you by your account. If your browser holds cookies, they can keep linking this session to previous visits. Analytics and advertising systems draw on further signals as well.

So changing your IP is useful for network privacy, but it is not the same as anonymity.

With MaskNet, the external IP changes for connections that run through the protected MaskNet network. Local Russian services on a direct connection may see the public IP of your ordinary internet connection.

A VPN does not hide your account

If you turn on a VPN and then sign in to your email, a social network or a marketplace under your own name, the service still knows which account is in use.

That is not a shortcoming of the VPN — account identification simply lives at a different layer.

A VPN protects data in transit and changes the network characteristics of the connection. An account tells the service exactly who is signed in.

For the same reason, a VPN does not stop a bank from seeing its customer's transaction history, or a video service from keeping a watch history on the account. That data exists inside the service itself.

Keeping separate digital profiles apart takes separate measures: privacy settings, account hygiene, and managing cookies and app permissions.

A VPN does not delete cookies or your browser fingerprint

Cookies live in your browser or app. Switching on a VPN does not clear them.

If an advertising system previously wrote an identifier into a cookie, it can survive a change of IP. Data in the browser's local storage behaves the same way.

There is also the browser fingerprint — the combination of characteristics of your device and software environment. It can include browser version, language, screen size, time zone, graphics capabilities and more.

A VPN does not control most of those characteristics.

It is one more reason why internet privacy is a broader question than hiding an IP address.

A VPN is not antivirus and does not stop every phishing attempt

A protected connection does not make a malicious file safe once you have downloaded and run it yourself.

Nor can a VPN recognise every counterfeit page. If someone opens a phishing site and willingly types in a password, encryption simply protects that password on its way to the phishing site.

Those problems need other layers: an up-to-date operating system, a secure browser, antivirus protection, checking the addresses of sites, and care with files and links.

Two-factor authentication matters especially here. Even if a password is compromised, a second factor can make signing in considerably harder for an attacker.

A VPN is one layer of ordinary digital protection

In practice, a decent level of security is made up of several independent measures.

A VPN protects the network connection. HTTPS protects the exchange with a particular site. A password manager makes unique, strong passwords practical. 2FA adds a second check at sign-in. Updates close known vulnerabilities. Privacy settings limit how much data services use inside their own systems.

None of these tools does the whole job alone.

Assessing a VPN accurately makes it more useful, not less: you can see where it genuinely raises your protection and what you should not expect from it.

MaskNet combines a protected connection with smart routing and modern network infrastructure, while keeping the day-to-day experience simple.