Password Strength Example
Analysis of a strong password
Password
••••••••••••••••••••Strength Meter
StrongScore: 75/100
Security Metrics
- Estimated Crack Time
- ~centuries
- Entropy (bits)
- 66
Issues & Recommendations
- •Consider adding a number or symbol for extra strength
Note
Famous XKCD passphrase — demonstrates that length beats complexity
Understanding Password Entropy
Entropy measures the unpredictability of a password. Higher entropy means more possible combinations and longer crack times. A 12-character random password with mixed case, numbers, and symbols has ~78 bits of entropy. A 4-word passphrase like "correct horse battery staple" achieves strong security through length rather than complexity.
Best practices: use a password manager, enable 2FA, avoid dictionary words and predictable patterns, and prefer long passphrases over short complex passwords.