Protect your data this World Quantum Day with these quantum-secure VPNs – and they start at $1.78 per month

NordVPN | $3.09 per month | 2 Years + 3 months FREE
NordVPN introduced post-quantum encryption across all its platforms in May 2025, having first introduced it on Linux in 2024. The protection is only available via the NordLynx protocol and can be toggled on and off within the app's settings.

A 27-month plan starts at $3.09 per month ($83.43 upfront) and comes with a 30-day money-back guarantee.

Surfshark | $1.78 per month | 2 years + 4 months FREE
EXCLUSIVE: Surfshark is the most recent VPN to make post-quantum encryption available, launching it in January 2026 through its WireGuard protocol. Post-quantum encryption is always on, all you have to do is select the WireGuard protocol. Better still, you can use it on unlimited devices with one subscription.

Tom's Guide, and our friends at TechRadar, currently have an exclusive Surfshark deal until April 19. A 28 month plan costs $1.78 per month ($49.84 upfront pre-tax). There's a 30-day money-back guarantee and offers a 7-day free trial for all devices.

ExpressVPN | $2.27 per month | 2 years + 4 months FREE
ExpressVPN adopted ML-KEM in January 2025. All platforms were supported straight away and post-quantum protection is always on when connected to its Lightway protocol. ExpressVPN has also made its implementation of WireGuard quantum secure – the protocol doesn't have native post-quantum support.

A 28 month ExpressVPN plan starts at $2.27 per month ($63.52 upfront) and comes with a 30-day money-back guarantee.

Mullvad | $5.90 / €5 per month
Mullvad was an early adopter of post-quantum encryption, beginning its roadmap in 2017. By 2024, post-quantum encryption was offered on all devices as standard via its WireGuard implementation.

Mullvad has a flat pricing structure, costing €5 per month (~$5.90 per month) regardless of plan length. Plus, there's a 14-day money-back guarantee for non-cash payments.

Windscribe | $5.75 per month | 1 Year
Windscribe is another VPN that has made WireGuard quantum resistant. It launched the upgraded protocol in October 2025 and all devices are covered – simply connect to WireGuard.

A 12 month plan $5.75 per month ($69 upfront) and there's a 7-day money-back guarantee if you've used less than 10 GB on your plan.

PureVPN | $1.99 per month | 5 Years
PureVPN doesn't have widespread post-quantum encryption support, with protection limited to servers in the US, UK, Australia, Germany, Canada and the Netherlands. It's also only available via the OpenVPN protocol. OpenVPN is a highly secure VPN veteran, but isn't as fast or high-performing as WireGuard.

A 5 year PureVPN plan costs $1.99 per month ($119.40 upfront) and comes with a 31-day money-