Full post-quantum cryptography at every layer. Not just the tunnel, but the API transport, the key exchange, the DNS. Built for tomorrow's threats, quantum-safe from end to end.
Compared
| Post-quantum coverage | Secria | Proton | NordVPN |
|---|---|---|---|
| VPN tunnel | Default, every server | Not in production | Opt-in, one protocol |
| Encrypted mail | Default, every plan | All users, since May 2026 | No mail product |
| Both in one subscription | Yes, Secria Pro | Mail only | VPN only |
Checked August 2026 against each provider’s own docs.
Your traffic is being recorded for a future it can’t survive.
Network traffic captured today can be stored for as long as someone likes. When a quantum computer big enough arrives, the encryption protecting it falls. Everything logged then becomes readable. Secria’s post-quantum tunnel makes that recording worthless.
ISPs and adversaries capture encrypted traffic in bulk and store it for later.
A quantum computer retroactively breaks the key exchange behind today’s VPNs.
An ML-KEM-768 preshared key protects every session now, so captured traffic stays sealed for good.
Why Secria VPN
Most VPNs protect the tunnel and stop there. We protect every single layer of the stack against quantum attacks.
| Layer | Standard VPNs | Secria VPN |
|---|---|---|
| Tunnel | WireGuard (Curve25519) | WireGuard + ML-KEM-768 post-quantum preshared key |
| API Transport | TLS 1.3 (X25519) | Hybrid PQ TLS (X25519 + ML-KEM) |
| Server Auth | RSA / ECDSA certs | Ed25519 + ML-DSA verification |
| Software Signing | Ed25519 / RSA | SLH-DSA (SPHINCS+ tooling, hash-based PQ sig) |
| DNS | Third-party resolvers | Local Unbound recursive + DNSSEC |
| Stealth | Detectable / blocked by DPI | WireGuard-over-WebSocket (looks like HTTPS) |
| Routing | Single hop | Single-hop + 3-hop multi-hop circuits |
| Server Storage | Disk-based | RAM-only state (keys, logs, configs on tmpfs) |
We do not record browsing, DNS queries or traffic contents. While a session is live we hold the account and device it belongs to, the server in use and the time it started. That record goes when the session ends.
An OS-level kill switch blocks all traffic the moment the tunnel drops. Nothing leaks while the connection comes back.
Every server runs the same post-quantum tunnel and the same RAM-only state. There is no cheaper tier of server to be routed onto.
Native Apps
Native clients built for performance. No Electron wrappers, no browser extensions. Real apps with real kill switches.
Plans
Secria Pro is the same VPN with the 500 GB mailbox added. It costs less than buying the two apart.
What you see is what you are charged.
The full mailbox and the VPN, in one account.
47% less than buying both apart
$191.76 for 2 years · 8 months free
You save $167.76 over 2 years
After the first 2 years it renews yearly at $119. Turn renewal off any time in your account.
The mailbox on its own.
$78.96 for 2 years · 8 months free
After the first 2 years it renews yearly at $49. Turn renewal off any time in your account.
The VPN on its own.
$155.76 for 2 years · 8 months free
Add the 500 GB mailbox for $1.50/mo more with Pro
After the first 2 years it renews yearly at $99. Turn renewal off any time in your account.
Cancel any time, from your own account settings
Change your mind in 30 days and we refund it all
WireGuard speed. The post-quantum key is added at the handshake, not in the data path
The VPN runs on 5 devices: iOS, Android, Windows, macOS and Linux
The same post-quantum protection behind Secria Mail, now for your whole connection.
Love it, or get every cent back. 30 days.
Not ready to pay? Start with the free mailbox. The same login works for the VPN whenever you add it.