Guides

Clear, source-backed explainers on quantum computing and password security. We separate the real threats (Grover's quadratic speedup against symmetric keys, Shor's break of public-key crypto) from the marketing hype, and link back to the password checker so you can test what you learn.

• Are Password Managers Quantum-Safe?

  A password manager doesn't make a password 'quantum-safe' by itself. What protects you is the long random passwords it generates plus its AES-256 vault — which Grover only weakens to ~128-bit-equivalent, still far out of reach.

  June 19, 2026

• How Long Does It Take to Crack a 16-Character Password?

  A random 16-character password from a 95-symbol set has roughly 105 bits of entropy — centuries to crack offline today, and still secure even after a quantum computer applies Grover's square-root speedup. Here are the numbers.

  June 19, 2026

• Grover's Algorithm vs Your Password: What the Math Actually Says

  Grover's algorithm gives a quantum computer a quadratic (square-root) speedup against brute force, halving a password's effective bit-strength. Here is what that means for real passwords and why length still wins.

  June 19, 2026

• Post-Quantum Cryptography, Explained (and Why Passwords Aren't the Point)

  Post-quantum cryptography replaces the public-key algorithms Shor's algorithm can break. NIST has standardised ML-KEM (FIPS 203) and ML-DSA (FIPS 204) for key exchange and signatures — a separate problem from your password's strength.

  June 19, 2026