Formerly PostQuantumCryptography.de. Now PostQuantumSecurity.org.
Quantum computers will break today's encryption. We explain what changes next.
Independent research, analysis, and practical tools for teams preparing the post-quantum transition.
Learn the basics — from public-key cryptography to quantum threats — in our beginner-friendly guide. No prior knowledge needed.
Start Learning →Is your bank already quantum-safe? We scanned the world's 100 largest banks: 59 homepages already use post-quantum encryption, mostly because their CDN switched it on, yet online-banking logins lag behind and not one of the 21 Chinese or 4 German banks is protected. See where your bank stands.
Read Abstract →Chrome, Safari, Firefox and Edge now support post-quantum key exchange—but does that really make your browser quantum-safe? This article compares what each browser protects today, what is still missing, and how you can verify it yourself.
Read Abstract →An AI-assisted attack weakened HAWK and prompted the post-quantum signature candidate’s withdrawal from NIST review. We explain what was found, which algorithms remain safe, and how AI may change cryptographic standardisation.
Read Abstract →Your messages may be encrypted today, but not necessarily safe from tomorrow’s quantum computers — here is how Signal, iMessage, WhatsApp, Telegram, and others compare
Read Abstract →Quantum computers probably will not “instantly crack every password” — the real danger is the public-key cryptography that protects the connection carrying your password. The surprising part is that your password may survive quantum attacks better than the internet infrastructure around it.
Read Abstract →ML-KEM is the new post-quantum key exchange standard replacing RSA and Diffie-Hellman, but its real importance lies in how noisy lattice mathematics lets today’s Internet prepare for tomorrow’s quantum attacks.
Read Abstract →Use practical tools to benchmark hybrid post-quantum TLS and scan public domains for PQC readiness.
Compare classical TLS with hybrid post-quantum TLS using real browser-side measurements and clear size/performance breakdowns.
Open BenchmarkScan a domain for post-quantum TLS readiness and see whether public endpoints already negotiate quantum-safe or hybrid key exchange.
Scan With CipherScopePostQuantumSecurity.org is an independent research and analysis platform focused on quantum computing, post-quantum cryptography, and practical migration strategy. We translate technical standards, deployment tradeoffs, and emerging threats into useful guidance for engineers, security teams, and decision-makers.
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