Kai
CoordinateGrounded and practical, Kai helps the group stay focused when a strange situation starts moving faster than expected.
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Five friends discover a hidden world behind the technology we use every day. It is a world of strange Digis, impossible pathways, hidden signals and mysteries that can begin in our own.
Complete the challenge. Prove your cyber skills. Become a certified Ranger.

Leo knows his password is right. So why can't he sign in?
When Leo's account appears to be active while he is standing beside his friends, Kai, Maya, Jax, Zara and Finn follow the evidence into a mystery that opens a path somewhere none of them knew existed.
Behind the screen. Inside the DigiRealm.
The story starts with five ordinary friends, identical Ranger Bands and a living digital world they are only beginning to understand.
Grounded and practical, Kai helps the group stay focused when a strange situation starts moving faster than expected.
View profile →Maya notices who a problem affects. Her empathy helps the Rangers remember that solving the technical mystery is only part of helping.
View profile →Curious, technical and always ready to test an idea, Jax is often the first to ask: what happens if we try this?
View profile →Zara questions assumptions, checks the evidence and refuses to trust something simply because it looks convincing.
View profile →Finn spots patterns and anomalies others can miss, including the first impossible signs that something existed behind the screen.
View profile →Learn to spot the clues. Make the call. Earn your certificate.
Take on real-world cyber safety challenges inspired by the Rangers' adventures. Work through five training missions and 50 scenarios, then complete the Ranger Challenge to earn your certificate.
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What would a Ranger do?
Explore practical guides, conversation starters and free resources created for young Rangers, families and educators.
Simple, practical guides that help kids recognise phishing, scams, unsafe passwords, deepfakes and other online risks.
Explore the Safety Hub →Conversation starters and practical ways to bring the Rangers' cyber lessons into homes, classrooms and libraries.
For Families & Educators →Posters, worksheets, bookmarks, character cards, DigiRealm wallpapers and other free downloads.
Browse Free Resources →Every mystery reveals another part of the DigiRealm.

A strange account lockout becomes the Rangers' first clue that something exists behind the screen.
Discover Book 1 →
Trusted names, convincing messages and a phishing threat built around impersonation. The Rangers have to verify what they see without losing trust in each other.
The DigiRealm has only just been discovered.
Become a Ranger