Question 1

What is password strength?

Accepted Answer

Password strength measures how resistant a password is to guessing and brute-force attacks. It depends on length, character variety, and randomness.

Question 2

What is password entropy?

Accepted Answer

Entropy measures unpredictability in bits. Each bit doubles the required guesses. 80+ bits is considered very strong for offline attacks.

Question 3

How is crack time estimated?

Accepted Answer

Crack time is estimated based on the password's entropy and assumed attacker capabilities (offline: billions of guesses/sec, online: ~1000 guesses/sec).

Question 4

What makes a password weak?

Accepted Answer

Short length, common patterns, dictionary words, personal information, and character repetition all reduce password strength significantly.

Password Strength Checker

Live Example

Frequently Asked Questions

Ready to Start?