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 →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 →Modern cars may stay on the road longer than their encryption stays secure, making post-quantum cryptography a practical cybersecurity and compliance challenge for automakers today.
Read Abstract →This new Google white paper sharply lowers the estimated quantum cost of breaking the elliptic-curve cryptography behind Bitcoin and Ethereum, making the post-quantum transition feel much closer—and much more urgent—than many assumed.
Read Abstract →Hybrid TLS key exchange (X25519 + ML-KEM-768) is becoming the first large-scale post-quantum defense on the Internet—this article explains how it works and why it matters.
Read Abstract →Code signing anchors software supply chain security, but current algorithms are quantum-vulnerable. This article explores the rising threat of supply-chain attacks, the transition to ML-DSA, and why migration must begin before 2030.
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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