Password Check
Password Security Best Practices
A strong password is your first line of defense against cyber attacks. Brute-force attacks can crack simple passwords in seconds.
What Makes a Strong Password?
- Length: At least 12 characters (16+ is better).
- Complexity: Mix of uppercase, lowercase, numbers, and symbols.
- Unpredictability: Avoid dictionary words ("Password123", "Sunshine!").
Entropy: Measuring Strength
Entropy measures the level of disorder or randomness. Higher entropy means it takes exponentially longer for a computer to guess the password.
Example: "Tr0ub4dor&3" (Common substitutions) is weaker than "correct horse battery staple" (Random words, long length).
FAQ
How often should I change passwords?
Modern advice says: Don't change them unless compromised. Focus on making them long and unique for every site. Use a Password Manager.