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20 QUESTIONS · 5 TOPICS · CRACK-TIME CALCULATOR · ABOUT 12 MINUTES

Most breaches don't break the code. They trick a person.

Phishing, reused passwords and unpatched software cause far more incidents than clever hacks. Twenty questions on how attacks work and how to stop them, each explained, then see how long a password really lasts. No sign-up, nothing saved.

Start the test
THE CIA TRIAD
ConfidentialityOnly the right people can read it.
IntegrityNobody can change it unnoticed.
AvailabilityIt's there when it's needed.
QUESTION 1 / 20 · THREATS & ATTACKSEasy

An email pretending to be from your bank, asking you to 'verify' your login, is…

CRACK-TIME CALCULATOR

How long would your password last?

Type an example (not your real password). Everything is calculated in your browser; nothing is saved or sent. Or try one of these:

Strong≈ 72 bits · 11 characters
11 characters (aim for 12+)lowercaseuppercasenumberssymbols or spaces
Under 12 characters. Length beats complexity: four random words make a stronger password than a short scramble.
Online login attacklonger than the universe has existedA website that limits attempts slows attackers down.
Offline, fast hash (GPU rig)9.0 thousand yearsIf a site leaks MD5 or SHA-1 password hashes.
Offline, slow hash (bcrypt)9.0 billion yearsIf a site stored passwords properly.
Estimates assume a brute-force attacker who knows the character set; real crackers try common passwords and patterns first, which is why the warnings matter more than the times. Speeds: 10 guesses/s for a rate-limited login, 10 billion/s against a fast unsalted hash on a GPU rig, 10,000/s against bcrypt.

What this cybersecurity test covers, in short

Twenty multiple-choice questions at introductory undergraduate level, four on each of five topics: threats and attacks, cryptography, authentication, network and web security, and secure practice. They test how systems get attacked and how they're defended.

The test is for learning defence, not attack. It's our own and not normed.

By What's Your IQ · Reviewed 5 Oct 2026
Format
20 multiple-choice questions
Level
Introductory undergraduate
Bonus
Password crack-time calculator
Privacy
Nothing you type leaves your browser

Keep going

Computer networks testTLS, firewalls and how packets travel.Software engineering testTesting and review catch security bugs early.Critical thinking practiceThe same instincts that spot phishing spot bad arguments.

Spotting the trick is a reasoning skill. Test yours.

Our full IQ test covers logical, numerical, verbal and spatial reasoning: 60 questions, about 30 minutes.

Take the full IQ test