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 →Google's Willow chip cut magic-state errors 40-fold, and headlines called it a step toward breaking Bitcoin and RSA. We explain what the experiment actually measured, why it was already priced into today's attack estimates, and how far there is still to go.
Read Abstract →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 →Benchmark hybrid post-quantum TLS, scan public domains for PQC readiness, and follow our live trackers.
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 CipherScopeRegularly updated data on qubit estimates for breaking RSA and ECC, bank adoption of post-quantum TLS, and migration deadlines by country.
Open TrackersPostQuantumSecurity.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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