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Surfshark has introduced post-quantum cryptography (PQC) to its WireGuard protocol on macOS, Linux, and Android, enhancing data protection against future quantum computing breaches. The PQC is enabled by default and adds a security layer to the existing elliptic-curve-based encryption.

Surfshark plans to extend this feature to iOS and Windows. The integration involves a two-step handshake: first using Curve25519 encryption, followed by PQC with the lattice-based ML-KEM algorithm. This approach ensures backward compatibility and secure key generation.

The company emphasizes the need for businesses and governments to adopt advanced security measures in anticipation of quantum threats. A recent study by Surfshark revealed that only 8% of popular apps are quantum-resistant, highlighting the urgency for broader PQC adoption across sectors.