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What Is a VPN: Settings, Privacy Rules, and the Best VPN Services in 2026
What is a VPN, and what does it actually do? VPNs have become a familiar privacy tool, but their capabilities are often misunderstood. Some people turn one on only to access a blocked website, others expect complete anonymity, and some install the first free VPN they find and use it for their primary accounts. A VPN can improve your privacy, but it does not solve every security problem.
This guide is for anyone who wants to understand how a VPN actually works, which privacy rules matter, and which services are worth considering in 2026.
What is a VPN: what it does and what it does not do
A VPN (Virtual Private Network) creates an encrypted tunnel between your device and a VPN provider’s server. Your traffic is routed through that server: your internet service provider can see the VPN connection itself, but it cannot see the final websites in the same way it could over a direct connection, while websites see the VPN server’s IP address instead of your own. That is the basic idea behind a VPN. The differences between services come down to protocols, server infrastructure, and privacy practices.
What a VPN can do:
What a VPN does NOT give you:
Start with your threat model
Before choosing a VPN, answer one question honestly: who are you trying to protect yourself from?
The more clearly you understand your threat model, the easier it is to choose the right tool. For everyday use, the usual goals are protecting traffic on networks you do not control, hiding your real IP address from websites, and reducing the amount of network metadata available to your ISP.
Protocols: WireGuard, OpenVPN, and IKEv2
A VPN protocol defines how your device establishes the secure connection to the server and how encrypted traffic is transported. Modern VPN services most commonly use WireGuard, OpenVPN, IKEv2/IPsec, or a provider-specific protocol.
WireGuard. For most users, this is the best modern default. The official WireGuard website describes it as a fast, compact protocol built around modern cryptography. Its relatively small codebase makes auditing easier, and in practice WireGuard usually delivers high speeds and works well on mobile devices. It uses primitives including ChaCha20, Curve25519, and BLAKE2s. If your VPN supports WireGuard, it is usually the first protocol worth trying.
OpenVPN. A mature protocol that has been in use since 2001. It is well studied and remains useful in corporate and unusual network environments, although it is often slower than WireGuard. Mullvad is phasing out OpenVPN in 2026 in favor of WireGuard, while other providers still support both.
IKEv2/IPsec. Useful on mobile devices because it can recover connections quickly when you switch between Wi-Fi and cellular data. For ordinary use, however, there is usually little reason to choose it over WireGuard.
Provider-specific protocols. NordVPN’s NordLynx is built on WireGuard and adds its own approach to user address management. ExpressVPN’s Lightway was developed separately, has undergone Cure53 audits, and is designed for fast reconnection with low overhead. Both work well for everyday use, while open WireGuard remains easier to evaluate independently.
What should you use by default? For most situations, start with WireGuard or a modern provider protocol based on it. Switch to OpenVPN or IKEv2 only when a specific network or device gives you a reason to.
How to use a VPN for better privacy
A VPN by itself does not provide complete privacy. The result depends on your settings, browser, accounts, and habits. The most common mistake is treating a VPN as an “anonymity button.” It is not. The settings below are the ones that actually matter.
Privacy is not the same as anonymity
Privacy and anonymity are often treated as the same thing, but they solve different problems.
Privacy means that other parties on the network get less information about your traffic. For example, the operator of a hotel Wi-Fi network cannot read the traffic between your device and the VPN server, while a website sees the VPN server’s IP address instead of yours.
Anonymity means that your online activity cannot be reliably linked back to your real-world identity. A VPN does not provide that on its own. If you sign in to your Google, Telegram, or exchange account, the service can identify you through the account regardless of which IP address you use.
Bottom line: a VPN improves connection privacy, but it does not guarantee anonymity. If your goal is to keep an activity separate from your real identity, you need separate accounts, a separate browser profile or Tor, and stricter OPSEC.
Anonymous payment: when it actually matters
Your payment method can link a VPN account to your billing information. If you pay with a bank card, the provider or its payment processor receives more identifying information even if the VPN itself does not keep activity logs.
For most users, that is not a major concern. If you use a VPN to protect traffic on public Wi-Fi or to change your IP address, paying with a normal card does not cancel those benefits.
A more private payment method matters when the fact that you use a VPN could itself create risk, or when you do not want the VPN account to be easily linked to banking information. In that case, look at what payment data is collected by both the VPN provider and its payment partners.
Services that support more private payment options:
For users who want to minimize the link between payment and identity, Monero can be more private than a bank card or cryptocurrency purchased through a KYC exchange. Payment privacy still does not replace a no-logs policy and does not make the VPN account anonymous by itself.
DNS and WebRTC leaks: what to check
If DNS requests bypass the VPN tunnel, your ISP or another DNS operator may still be able to see which domains you are requesting. This is known as a DNS leak.
WebRTC is used for browser-based voice and video communication. With the wrong browser or VPN configuration, it can expose network information that you did not intend to reveal to websites, so it is worth testing separately.
How to test: use dnsleaktest.com or ipleak.net for DNS, and browserleaks.com/webrtc for WebRTC. Connect to the VPN first, then open the test. If you see your real public IP address or DNS servers associated with your ISP when you should not, investigate the configuration.
What to do: first check whether the VPN app uses its own DNS servers and whether it includes dedicated leak protection. If the WebRTC test reveals network information you do not want exposed, review your browser settings or use a browser profile configured for privacy.
Kill switch: protection when the VPN disconnects
A kill switch blocks ordinary internet access if the VPN connection unexpectedly drops. Without it, your device may automatically fall back to a direct connection and websites can once again see your real IP address.
If it matters to you that your real IP address never appears during a disconnect, keep the kill switch enabled. Proton VPN and NordVPN call the feature Kill Switch, while Mullvad also offers Lockdown mode.
Do not mix “anonymous” activity with personal accounts
If you are trying to keep a specific activity separate from your real identity, signing in to your normal Gmail, Telegram, exchange, or other personal account breaks that separation. The service can see which account used a particular VPN address at a particular time.
For that kind of threat model, use separate accounts and a separate browser profile, and do not mix them with your personal accounts. That matters more than constantly switching VPN servers.
Your browser can matter more than your VPN
Websites do not identify you by IP address alone. A browser fingerprint combines extensions, fonts, Canvas behavior, GPU information, language settings, and many other characteristics. In some cases that fingerprint can be distinctive enough to recognize you even after you change your IP address.
If privacy is your goal:
A VPN plus your everyday Chrome profile with all of your usual extensions is primarily an IP-address change, not full anonymity.
What to avoid
Free VPNs. A free tier is not automatically unsafe: Proton VPN Free and Windscribe Free both have a clear business model. The real problem is an unknown service that does not explain how it makes money, what data it collects, or who owns it.
VPNs with unclear jurisdiction or data-access rules. If a service operates in a country with aggressive state control over the internet, check the local data-retention requirements, how government requests are handled, and how independent the provider really is.
VPNs with no independent verification of their no-logs policy. The statement “we don’t keep logs” proves nothing by itself. In 2017, PureVPN provided the FBI with session logs despite marketing itself as a no-logs service. What matters is independent auditing, technical architecture, and how the provider has handled real legal requests.
VPNs with opaque ownership. Before paying, check who owns the brand and what other services belong to the same group. ExpressVPN, for example, is owned by Kape Technologies. A large parent company does not automatically make a VPN bad, but ownership is relevant when you evaluate transparency.
What to look for when choosing a VPN service
Almost every VPN website promises speed, privacy, and no logs, so marketing claims alone are not enough. Compare providers using concrete criteria: jurisdiction, independent audits, server infrastructure, protocols, payment methods, and the features you actually need.
Jurisdiction. The country where a company is registered affects the laws it operates under, including data-retention rules and participation in international intelligence-sharing arrangements.
Jurisdiction matters, but it should not be evaluated in isolation from the provider’s technical design and retention practices. PIA operates in the United States but has been unable to provide user activity logs in court cases. Surfshark is registered in the Netherlands but has undergone independent reviews of its no-logs policy. Do not look only at the country of registration; look at what data the service is technically capable of storing.
Verification of the no-logs policy. A provider’s own promise is not enough. Look for several independent signals: audits, transparency reports, and evidence of how the service has responded to real requests for user data.
RAM-only servers. With this architecture, working data is kept in volatile memory rather than on persistent storage, so it does not survive a server reboot. RAM-only infrastructure does not replace a no-logs policy, but it reduces the amount of data that could remain on a physically seized server. NordVPN, ExpressVPN, Surfshark, CyberGhost, and Mullvad are among the providers that use RAM-only infrastructure.
Server and country count. Bigger numbers are useful only if they give you the locations you need and stable capacity. PIA, Proton VPN, CyberGhost, and NordVPN operate much larger networks than Mullvad, but the more useful questions are whether the provider has the country you need, how congested its servers are, and who controls the infrastructure.
Speed. VPN speed depends on your location, ISP, and the server you choose. WireGuard is generally faster than OpenVPN, sometimes by a wide margin. NordVPN often ranks near the top of independent speed tests, with Proton VPN and ExpressVPN also performing well. Mullvad is fast on nearby servers but can be slower on long-distance routes because it has fewer locations.
P2P and torrents. If you use BitTorrent, make sure the provider permits P2P traffic. NordVPN, Mullvad, Proton VPN, Surfshark, CyberGhost, and PIA allow it. ExpressVPN permits P2P on most of its servers.
Multi-hop / Double VPN. In this mode, traffic passes through two VPN servers in sequence. That can make traffic correlation more difficult, although it usually reduces speed. NordVPN offers Double VPN, Proton VPN has Secure Core, Mullvad offers Multihop, and Surfshark includes MultiHop.
Streaming. If you want a VPN for another region’s Netflix catalog, BBC iPlayer, or Disney+, look beyond the raw number of countries and check how the service handles geo-restrictions. ExpressVPN, NordVPN, and CyberGhost actively target this use case; Proton VPN also supports streaming on paid plans. Mullvad focuses more heavily on privacy, so unblocking streaming platforms is not its main priority.
Payment methods. If you do not want to tie the VPN account to a bank card, look for Monero, Bitcoin, or cash payments. For ordinary use, a card, PayPal, Apple Pay, or Google Pay is usually sufficient, depending on what the provider supports.
Company ownership. Mullvad operates as Sweden-based Mullvad VPN AB, Proton VPN is part of Proton AG, and NordVPN and Surfshark belong to Nord Security. ExpressVPN, CyberGhost, and Private Internet Access are owned by Kape Technologies, which is controlled by Unikmind Holdings. Common ownership does not automatically make a service worse, but it matters when you evaluate independence and corporate transparency.
Best VPN services in 2026
The services below are compared on privacy, usability, price, and extra features. There is no single “best VPN” for everyone: the right choice depends on whether you care most about privacy, streaming, the number of devices, or ease of use.
Mullvad — best for privacy
Mullvad consistently puts privacy ahead of marketing tactics and long subscription plans. Registration does not require an email address: the service creates a 16-digit account number that you use to sign in. You can pay with Monero, Bitcoin, or even cash sent by mail.
In 2023, Swedish police arrived at Mullvad with a warrant seeking user data, but the company said it had no activity logs to hand over. The incident became a practical test of the provider’s no-logs policy.
Strengths:
Weaknesses:
Best for: users who value privacy more than the largest possible feature list, as well as journalists, security researchers, and anyone who wants to minimize the personal information required for registration and payment.
Proton VPN — best overall balance
Proton VPN is part of the wider Proton ecosystem alongside Proton Mail, Drive, and Pass. The service operates under Swiss jurisdiction, publishes the source code for its client applications, and undergoes independent security reviews. Proton also publishes transparency reports covering legal requests.
Proton VPN Free stands out from most free VPNs because it does not show ads and does not impose a data cap. Server choice and some features are more limited than on paid plans, so the free tier is best viewed as a solid basic option rather than a full replacement for the paid service.
Strengths:
Weaknesses:
Best for: users who want strong privacy, a polished app, and useful extra features in one service. The free plan is a good starting point if you want to try a VPN without paying first.
NordVPN — best for everyday use
NordVPN is one of the best-known mainstream VPN services, with a large server network and a broad feature set. Its no-logs policy has undergone repeated independent reviews, while its infrastructure and client-side security have also been audited separately.
For its main connections, NordVPN uses NordLynx, its own implementation based on WireGuard with additional mechanisms for handling user addressing.
Strengths:
Weaknesses:
Best for: most users who want high speed, streaming, P2P support, and a wide range of extra features in one app.
Surfshark — unlimited devices at a low price
Surfshark has been part of Nord Security since 2022 but continues to operate as a separate brand. Its biggest practical advantage is unlimited simultaneous connections, so one subscription can cover all of the devices in a household.
The company is registered in the Netherlands, which is part of the 9 Eyes intelligence-sharing alliance. Surfshark nevertheless maintains a no-logs policy, has undergone independent reviews by Deloitte, and uses servers without persistent data storage.
Strengths:
Weaknesses:
Best for: families and users with many devices who want low long-term pricing without a strict limit on simultaneous connections.
ExpressVPN — simple interface and reliable streaming
ExpressVPN focuses on simple setup, stable connections, and reliable access to streaming platforms. It uses its own Lightway protocol and has undergone numerous independent audits. In 2017, a server seizure during an investigation in Turkey did not provide investigators with user activity logs.
Strengths:
Weaknesses:
Best for: users who want easy setup, reliable streaming, and minimal manual configuration. If privacy is your highest priority, compare it with Mullvad and Proton VPN as well.
CyberGhost — large server network and streaming
CyberGhost runs a large server network and clearly labels servers intended for streaming and P2P. The company operates from Romania and also offers separate NoSpy servers for users who want tighter control over where their traffic is handled.
CyberGhost’s no-logs policy has undergone independent Deloitte reviews, and the company regularly publishes transparency reports. Its NoSpy servers are located in Romania and are separated from the provider’s ordinary rented infrastructure.
Strengths:
Weaknesses:
Best for: users who want a broad choice of locations, dedicated streaming and P2P servers, and low long-term pricing.
Services and situations to avoid
VPN comparison table
The table below summarizes the main characteristics for quick comparison. The sections above explain the important caveats and differences in more detail.
How a VPN fits into your overall OPSEC
A VPN is only one layer of security. For a crypto user, it mainly protects the network connection and changes the visible IP address. It does not replace account security, device security, or seed phrase protection.
What a VPN does not do:
A VPN only covers the network layer. A hardware wallet, a secure seed phrase backup, a password manager, and security keys solve different problems and cannot be replaced by a VPN.
Conclusion
So, what is a VPN in practical terms? It is a tool that encrypts the connection between your device and a VPN server, changes the IP address visible to websites, and reduces the amount of network information available to the local network and your ISP. It does not provide complete anonymity, and it does not protect you from phishing or malware.
Start with your threat model. For everyday use, a service with a modern protocol, a kill switch, a clear no-logs policy, and independent audits is usually enough. If you also need censorship resistance, more private payment options, or minimal personal information during registration, check those requirements separately.
Quick recommendations:
Whichever service you choose, check the basic settings before relying on it. At a minimum:
A VPN remains just one layer of your security setup. A hardware wallet protects your private keys, a password manager protects credentials, and security keys protect account access. A VPN handles a different part of the system: your network connection and the IP address visible to the outside world.
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