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Safari

Apple documents quantum-secure TLS for supported platform releases. Safari behavior must be checked on the actual operating system and network path.

Evidence to collect

1. Consult Apple’s current deployment guidance for the device’s OS release.
2. Run the browser check in Safari; preserve unknown if group evidence is unavailable.
3. Keep iMessage PQ3 evidence separate from Safari TLS.

Record the scope and result

Record the tested component, client, peer, protocol, selected algorithm, and date. Keep observed negotiation, documented capability, and unknown distinct. A failed check can reflect local tooling, certificate validation, network policy, or configuration; it does not prove that all PQC is unsupported.

Official references

• Apple quantum-secure TLS deployment guidance

Guidance reviewed 24 September 2026. Verify documentation for your deployed release; vendor capabilities and defaults change.