TIME REMAINING12s
SPECIMEN #1
password123
11 characters
STATIC ANALYSIS
a–z+26
A–Z+26
0–9+10
!@#$+32
Charset size36 symbols
Entropy56.9 bits
= 11 chars × log₂(36) = 56.9 bits
Est. crack timeat 10¹¹ hashes/sec
8 daysAbout Password Defender
Rate passwords as Weak, Medium, or Strong, against the clock. Learn what separates a crackable password from a fortress.
Difficulty: BeginnerTime: ~4 min
How it works
- Ten passwords are shown one at a time. For each one you decide whether it is Weak, Medium, or Strong before a 12 second timer runs out.
- You score one point for each correct rating. If the timer expires the answer is counted as a timeout.
- Entropy and an estimated crack time are visible while you choose. After your answer, the game reveals its rating, explanation, and password checks.
What you'll learn
- Why length beats complexity: a passphrase like correct-horse-battery-staple rates Strong while P@ssw0rd! rates Weak.
- How character variety and length affect the simplified entropy and crack-time estimates displayed by the game.
- Common patterns attackers try first: dictionary words, keyboard walks like qwerty, and leetspeak swaps such as Tr0ub4dor&3.
- Comparing password length, common-password matches, and keyboard patterns using the checks displayed by the game.
FAQ
Is it free and do I need to sign in?
Yes, it is free and needs no account. The passwords are examples built into the game and everything runs in your browser.
Who is it for?
Anyone who wants to judge password strength faster: new security learners, IT helpdesk staff, and teachers running a security awareness session.
What makes a password strong here?
Ratings are predefined for the examples: the 16 and 20 character random strings and correct-horse-battery-staple rate Strong; qwerty and P@ssw0rd! rate Weak. Tr0ub4dor&3 rates Medium.