Strong Passwords: The Complete Guide (2025)
Why strong passwords matter, which length makes sense and how to remember them.
1. Length beats complexity
A 16-character password from a large character set already has very high entropy. Length protects better than obscure symbols.
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2. Password managers
With a manager you use a different password for every service – and only have to remember the master password.
3. Two-factor authentication
Whenever possible, enable a second layer (TOTP, security keys). It blocks many attacks.