Developer Jun 23, 2026

Why a Password Generator Using Math.random() Is Less Secure Than Its Length Suggests — Entropy, CSPRNG, and What to Check

A password generator using Math.random() is not cryptographically secure — a password's effective entropy is limited by the randomness quality of the generator, not just its length and character set. Here's what password entropy actually measures (bits of theoretical guessing difficulty), why crypto.getRandomValues() is categorically different from Math.random(), why length increases entropy faster than adding special characters, and how Diceware achieves verifiable physical randomness.

Developer Jun 16, 2026

Why a Strong Password Isn't Enough: Credential Stuffing and the Case for Unique Passwords Everywhere

A password can be long, random, and never appear in any breach — and still get your account compromised, because the attack that actually breaks most accounts isn't guessing your password, it's trying a password that worked on a completely different site you used years ago. Here's how credential stuffing works, why password "strength" is irrelevant to this specific attack, and why a generator-plus-manager combination — making unique-per-site passwords practically achievable — directly closes this vector.

Developer Jun 13, 2026

Passkeys: How FIDO2/WebAuthn Works and Why It's Replacing Passwords

Passkeys store a private key on your device and register only the public key with the website — there's nothing to phish, breach, or reuse. Here's how FIDO2/WebAuthn registration and authentication work, the difference between platform passkeys (iCloud, Google) and hardware keys, and the current state of passkey adoption.

Developer Jun 9, 2026

Password Managers: How Zero-Knowledge Encryption Works and Which One to Choose

Credential stuffing is the main threat, and unique passwords are the defence — but only a password manager makes that practical at scale. Here's how zero-knowledge encryption works, Bitwarden vs 1Password vs KeePass compared, and how to set up recovery.

Developer Jun 7, 2026

Why "P@ssw0rd1" Still Gets Cracked: What Password Strength Actually Means

Most passwords that "pass" complexity rules are still cracked in minutes. Here's how attackers actually work, what password entropy means, and why random generation beats human-chosen passwords every time.

Developer Jun 6, 2026

Password Generator — Create Strong, Random Passwords Instantly

Learn what makes a password truly strong, why human-invented passwords fail, and how to use a free password generator to create cryptographically random credentials for every account.