Cyberkiz

Password Strength Checker

Check your password strength and verify it against the Have I Been Pwned database of over 900 million breached passwords. Entropy scoring, character requirements, and improvement tips included.

Privacy-first design

Strength analysis runs entirely in your browser — your password is never stored or transmitted. When you click “Check Against Breach Database”, only the first 5 characters of a SHA-1 hash are sent to Have I Been Pwned using k-anonymity — your actual password cannot be determined from this prefix.

Why password strength matters

Credential stuffing attacks exploit password reuse — when one service gets breached, attackers try those same passwords on banking sites, email, and social media. With services like Maybank2u, Shopee, Grab, and TNG eWallet, many Malaysians reuse passwords across platforms.

Use a unique, strong password for every account. Consider a password manager (Bitwarden, 1Password) to generate and store unique passwords. Enable two-factor authentication on banking and email accounts at minimum.