Learn by doing

Hands-on labs built from the work analysts really do: reading logs, peeling encodings, writing detections. Everything runs in your browser. No sign-up, nothing to install, nothing tracked.

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New to security? Find a direction first, and keep the glossary open while you play.

Find your pathA personal quiz for beginners: every question adapts to your last answer. Get your path, why it fits you and your first three steps.
GlossaryPlain-English definitions of the cybersecurity terms you’ll run into, from APT to zero trust. Searchable and filterable.

2 labs

Log huntFilter a real-looking server log, pin the evidence and work out how the attacker got in. Two cases.
Decode the layersPeel Base64, hex, URL, ROT13 and XOR layers off suspicious strings, like analysts do in CyberChef. Endless random mode.

2 labs

Write the ruleWrite a YARA-style detection rule that catches every malware sample and none of the clean files. Scored live as you type.
Classify the infectionRead what defenders observed on an infected machine, name the type of malware and learn how to respond.

2 labs

Alert triageWork a SOC shift: read eight alerts, close the benign ones and escalate the real threats. New alerts every shift.
Spot the phishAn inbox of eight messages, shuffled every time. Report the phishing, keep the real ones.

2 labs

Shell questReview a copy of a server in a real-feeling Linux terminal. Use ls, cat, grep and find to collect five flags. A new server every game.
Permissions labSet Linux file permissions with least privilege. Watch ls -l, octal and chmod change live. New tasks every run.

3 labs

Real or fake link?Read addresses the way a browser does and spot the lookalike links hiding in emails and texts. New links every round.
Hash and saltSee how websites should store passwords: a live SHA-256 hash, why salting matters and how strong a password really is.
Fix the queryReview code that builds SQL from user input, pick the fix a security reviewer would approve and watch the tests run.

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