Best VPNs: security and privacy comparison

Le meilleur VPN en 2026 dépend d’abord de votre risque : Proton VPN se distingue par ses preuves de non-journalisation, NordVPN par ses performances mesurées, Mullvad par sa tarification simple, et ExpressVPN ou Surfshark par leurs protocoles récents. Pour une PME, aucun VPN grand public ne remplace toutefois une gestion stricte des accès, des appareils et des comptes.

What is the best VPN for privacy in 2026?

The best VPN for privacy is the one that collects less data and proves it through independent audits, public reports, and legal challenges. In 2026, Proton VPN presents the clearest body of evidence, while Mullvad has a concrete track record showing the absence of usable data during a police search.

A VPN, or virtual private network, is a service that encrypts the connection between your device and a remote server. Your internet service provider can see that a VPN connection exists, but can no longer directly see the sites you visit. The final website sees the VPN server’s IP address rather than yours.

This protection has limits. The VPN service can technically observe certain metadata (information about the connection) if it chooses to keep it. It is therefore important to distinguish a “no logs” policy, which remains a marketing claim, from a policy verified by a third party and tested against legal requests.

Proton VPN’s fifth consecutive annual audit, conducted by Securitum and published on June 16, 2026, found no browsing activity, DNS requests, traffic content, or connection metadata that could identify a user in the infrastructure reviewed. The full report is public. Under Swiss jurisdiction, Proton also says it rejected the 458 legally binding identification orders it received between 2019 and June 2026, due to the lack of available connection logs.

Mullvad offers a different kind of proof. On April 18, 2023, Swedish police arrived at its offices in Gothenburg with a search warrant, then left without a computer or customer information after finding that the requested data did not exist. This case does not prove that the entire infrastructure will always be flawless, but it does lend more weight to the stated policy.

How do you compare the audits of the best VPNs?

A VPN audit checks specific controls over a defined period; it does not continuously guarantee the entire service. The right approach is to look at the auditor, scope, date, report publication, and any corrections made, rather than simply counting the number of audits shown on a marketing page.

In February 2026, NordVPN announced its sixth assurance engagement on no-logs compliance. Deloitte reviewed the standard, Double VPN, obfuscated, and Onion-over-VPN systems from November 10 to December 12, 2025, according to the ISAE 3000 standard. The detailed report remains available only to NordVPN account holders, which limits verification by prospective customers.

Deloitte a aussi achevé le 10 juin 2025 une mission ISAE 3000 concernant Surfshark, société établie aux Pays-Bas. Le périmètre couvrait les serveurs VPN standard, statiques et multiport. En juin 2025, KPMG a terminé le troisième audit des engagements de confidentialité d’ExpressVPN, notamment sur l’absence de conservation de l’historique, des destinations, du contenu et des requêtes DNS.

Before relying on an audit as the deciding factor, check these five items:

• the date and the actual period reviewed;
• the servers, apps, and features included in the scope;
• the auditor’s independence and identity;
• public or restricted access to the full report;
• documented reservations, incidents, and corrective measures.

A common mistake is to confuse a no-logs audit, a code audit, and a penetration test. They do not answer the same question. In January 2026, Mullvad stated that a X41 D-Sec audit of its account and payment system found three medium flaws and two low-severity flaws, with no ability to access user data according to the company.

Best VPN comparison: security, proof, and price

Le comparatif du meilleur VPN ne produit pas un gagnant universel : Proton VPN offre des preuves publiques solides, NordVPN obtient le meilleur score du test Artifact Security de 2026, Mullvad conserve un prix fixe lisible, et ExpressVPN dispose d’un protocole audité séparément. Surfshark combine plusieurs modes de serveur et une bonne intégrité mesurée du tunnel.

Long-term plans easily distort the comparison. NordVPN Basic’s introductory price works out to about €3.49 excluding tax per month over the first 27 months in 2026, but the published renewal price reaches €139.08 excluding tax per year. Proton VPN Plus comes to around €2.99 excluding tax per month over 24 months before tax, then €83.88 excluding tax per year. Euro conversions vary with the exchange rate and taxes.

At this price point, it is better to look at the cost over three years than the savings from the first subscription. Mullvad costs €60 including tax per year according to its flat 2026 rate: the offer seems less flashy, but it avoids the gap between promotional price and renewal. To understand the other economic trade-off, the comparison between free VPN and paid VPN details what the lack of a subscription means.

Can measured performance help you choose a VPN?

Performance helps distinguish between two already credible VPNs, but it is not enough to identify the best VPN. In August 2026, an Artifact Security test conducted to the AMTSO v1.3 standard assigned 91 points to NordVPN, 84 to ExpressVPN, 83 to Proton VPN, 81 to Surfshark, and 70 to Mullvad on Windows.

AMTSO confirmed the validity of the comparative test on July 22, 2026; it began on May 18, 2026. The results remain tied to the devices, network paths, servers, and method used. A U.S. measurement on Windows therefore does not exactly predict the throughput obtained from a business fiber connection in Paris or from a hotel abroad.

NordVPN reported, in its summary of the external test published on August 10, 2026, an average connection time of 1.8 seconds, 98 % successful attempts, and a median download speed of 568.4 Mbit/s on Windows. These figures come from a single campaign. They do not constitute a contractual guarantee or proof of privacy.

Tunnel stability deserves as much attention as raw throughput. As of October 29, 2026, Comparitech’s 90-day rolling measurements showed tunnel integrity of 99.7 % for Surfshark, 99.5 % for ExpressVPN, 99.1 % for Proton VPN, 97.4 % for NordVPN, and 85.7 % for Mullvad, in its test environment. The published dataset covered 8,776 validated leak tests.

For an agency, the reflex is to test the service under the project’s real-world conditions: operating system, fiber or mobile network, country of connection, and business tools. A modest speed loss may be acceptable for accessing a back office, but it can become a drawback when transferring large files every day.

Is a consumer VPN enough to secure an SMB?

A consumer VPN is not enough to secure an SMB, because it mainly protects the Internet tunnel. According to the SANS Institute in 2026, this type of service does not by itself ensure least privilege at the application level, device confidentiality controls, or the full set of zero-trust access mechanisms.

Least privilege means giving each person only the access needed for their work. The zero-trust model verifies identity, device, and context before authorizing each resource. A personal VPN subscription cannot necessarily prevent an unpatched computer from opening a site’s admin panel or downloading all customer data.

For a team, the best VPN is therefore sometimes a false good answer. Honestly, centralized access with multi-factor authentication, named accounts, administrative logging, and immediate revocation makes more sense than a collection of individual subscriptions. This architecture should complement the endpoint security tools and a procedure for cyber incident response adapted for SMEs.

Post-quantum encryption is also appearing in offerings. ExpressVPN stated on October 26, 2026, that Lightway and its WireGuard implementation included it by default. Surfshark announced it on October 7, 2026, for WireGuard on iOS and macOS, with other platforms still pending. These features anticipate certain future risks, but they do not make up for a stolen password or a compromised device; the topic is covered in our analysis of the transition to post-quantum cryptography.

How do you choose the best VPN without relying on marketing?

To choose the best VPN, start with the data you need to protect, the countries you use, and the devices involved, then review logging evidence, the protocol, renewal, and automatic kill switch features. An SMB should plan for a real-world test of 5 to 10 business days before any long-term commitment in 2026.

On the projects we run, we often see the introductory price decide the choice before anyone checks the renewal terms or account administration. That immediate saving becomes expensive if an employee leaving requires changing shared credentials or if the application blocks business software.

WireGuard is a modern protocol appreciated for its simplicity and performance. OpenVPN remains widely compatible. NordLynx is the WireGuard adaptation offered by NordVPN, while Lightway is ExpressVPN’s open-source protocol; its Rust implementation was separately evaluated by Cure53 and Praetorian in 2024, with TLS 1.3 or DTLS and authenticated AES-256 or ChaCha20 encryption documented by Praetorian.

Do not choose based only on the number of countries or servers claimed. Instead, verify the presence of a kill switch (cutting traffic if the VPN fails), DNS leak protection, compatibility with your devices, the ability to revoke access, and the availability of support that can be used during your working hours.

Defining the use cases, access rights, and tests upfront avoids most unpleasant surprises. An outside perspective can especially help determine whether the need truly lies with a VPN, or with a more complete access architecture.

FAQ on choosing a VPN

Does a VPN prevent a ordinateur from being hacked?

A VPN encrypts network traffic, but it does not prevent malware, a fake site, or a stolen password from compromising the computer. Antivirus software, updates, multifactor authentication, and backups are still necessary.

Does a no-logs policy guarantee anonymity?

A no-logs policy states that the provider does not keep certain logs, without guaranteeing absolute anonymity. A recent and detailed independent audit reinforces this claim, but it remains a one-time verification of a defined scope.

Is WireGuard more secure than OpenVPN?

WireGuard has more compact code and uses modern cryptographic choices, while OpenVPN benefits from a long history and broad compatibility. Security also depends on the application, server configuration, and how the provider manages data.

Should you leave your VPN turned on all the time?

A VPN can remain active at all times on public networks or lors while traveling. For applications sensitive to the connection country, speed, or fraud detection, targeted activation may be more practical after risk analysis.