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Length is the ultimate defense. A 16-character password using only lowercase letters is mathematically stronger than an 8-character password packed with complex symbols. Modern brute-force attacks rely on high-speed GPU clusters, making length the only reliable way to outpace them.

Password reuse is the primary cause of account takeovers. If you use the same password for your email and a low-security forum, a data breach on the forum gives hackers the exact credentials they need to compromise your email. Always generate unique passwords for every service.

Many online generators are risky because they generate passwords on their servers and send them over the internet. PassLab is 100% client-side. The generation happens entirely within your web browser using secure Web Crypto APIs. Your passwords are never transmitted, tracked, or saved.

Absolutely. It is impossible for a human to memorize unique, 16+ character passwords for every account they own. A reputable password manager encrypts your credentials locally and autofills them, allowing you to use completely random, uncrackable passwords everywhere.

For passwords you must manually type or remember (like a master password or device PIN), passphrases are superior. A sequence of four or five random words provides massive entropy while remaining incredibly easy for the human brain to recall.

Entropy is a mathematical measure of unpredictability, measured in "bits". Every additional bit of entropy doubles the time it takes an attacker to guess your password. A password with 60 bits of entropy requires roughly one quintillion guesses to crack.

Yes. Even an uncrackable password can be stolen through phishing sites or malware. 2FA (specifically using an authenticator app or hardware security key) provides a critical second layer of defense that stops attackers even if they know your password.