Is KBC quantum-safe?
Partly. 33 of 39 public servers under kbc.com use post-quantum key exchange, the protection against traffic recorded today being decrypted once a large quantum computer exists. Grade B. Scanned October 18, 2026.
6 other servers without post-quantum key exchange
- awareness.kbc.com
- carsales.autolease.kbc.com
- invoicesautoleasebe.kbc.com
- invoicesautoleaselu.kbc.com
- scookies-adobe.kbc.com
- yoursurvey.kbc.com
33 servers already protected
- autolease.acc.kbc.com
- autolease.dev.kbc.com
- autolease.kbc.com
- demo.kbc.com
- fi-a.kbc.com
- fi-f.kbc.com
- fi.kbc.com
- idp-a.kbc.com
- idp-f.kbc.com
- idp.kbc.com
- idp2-a.kbc.com
- idp2-f.kbc.com
- integrityline.kbc.com
- kbc.com
- newsroom.kbc.com
- research.kbc.com
- router-a.kbc.com
- router-f.kbc.com
- router.kbc.com
- secmar-a.kbc.com
- secmar-o.kbc.com
- secmar.kbc.com
- syndication.kbc.com
- tracer-a.kbc.com
- tracer-o.kbc.com
- tracer.kbc.com
- www-a.kbc.com
- www-f.kbc.com
- www-o.kbc.com
- www.kbc.com
- www.newsroom.kbc.com
- yourdreams.acc.kbc.com
- yourdreams.kbc.com
What this means
NIST has scheduled the key exchange most servers still use for retirement: deprecated after 2030, disallowed after 2035 (NIST IR 8547). Traffic recorded today can be decrypted once a large quantum computer exists. A server that offers hybrid ML-KEM key exchange closes that today; a server that does not is still open to harvest now, decrypt later.
Hostnames come from public certificate logs plus common service names, kept where the name resolves to a public address, and each is tested from the outside with post-quantum-only TLS 1.3 handshakes. A hostname shows what a server is called, not what traffic it carries; internal systems are out of scope. Method.
Work at KBC?
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<a href="https://latticescan.com/readiness/kbc.com"><img src="https://latticescan.com/badge/readiness/kbc.com" alt="quantum readiness"></a>