Projects
Not single drills — guided tracks. Clear every lab in a track at grade B or better and claim a verifiable Certificate of Completion you can add to LinkedIn. Practising is free; the certificate comes with any plan.
Sign in to save your progress across devices and earn certificates.
Blue-Team Operations
Run the full defender loop: write detections, triage the alerts they raise, sequence the incident response, and reconstruct the breach from the evidence.
Network & Perimeter Defense
Control what gets in and what gets out: order a firewall ruleset first-match-wins, build an egress-filtering policy, and stop domain spoofing with SPF, DKIM and DMARC.
Cloud & Identity Security
Lock down the two layers attackers pivot through: remediate cloud misconfigurations by blast radius, and build Conditional Access policies that block legacy auth without locking out break-glass.
About the certificate
The PlayCISO Certificate of Completion is a verifiable record that you cleared a track’s hands-on exercises — each one graded against a goal. It carries a unique ID and a public verification page, so anyone can confirm it’s real. It is a training-completion certificate, not an accredited industry certification, and we say so on the certificate itself.