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Frequently Asked Questions
What makes a strong password?
A strong password is at least 12 characters, uses uppercase and lowercase letters, numbers, and special characters, avoids dictionary words and personal information, and is unique (not reused). A passphrase (4+ random words) is often stronger and more memorable than a complex short password.
What is password entropy?
Entropy measures unpredictability in bits. Each bit doubles the number of possible combinations. A password with 60+ bits of entropy is considered strong. A 16-character password using all character types achieves ~100 bits of entropy — effectively uncrackable by brute force.
How fast can passwords be cracked?
A modern GPU can attempt ~10 billion passwords/second against common hash algorithms. An 8-character password with only letters: crackable in hours. 12-character mixed: years. 16-character mixed: centuries. Length matters more than complexity.