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RatCTF
Free course bundle + 12mo Premium for contributions
Hands-on cybersecurity labs teaching real pentesting and privilege escalation
Verified Global
Important notes
Earn it by contributing: 10 graded pentest reports (A–D), 5 accepted walkthroughs, and 15 accepted community hints.
Not an instant-claim discount — unlocks only once all 3 contribution targets are reviewed and accepted.
Offers verified regularly. Terms vary by provider and region. Not affiliated with listed companies.