The App
Z.R.A.K. (Zone Recon & Analysis Kit) is a free Android app that turns any phone into a network security learning tool. WiFi analysis, Bluetooth scanning, threat detection — all on-device, no data sent anywhere.
Teach Network Security.
For Free.
Open educational resources for schools and teachers. Lab guides, hands-on simulations, and a real Android security toolkit — built around the Z.R.A.K. techno-thriller book series.
260+
Security Tools in App
5
Books in the Series
271
Field Stories
100%
Free & Educational
What is Z.R.A.K. Education?
A bridge between cybersecurity fiction and real-world learning
The Books
A five-book young adult techno-thriller series by Miro Feld. Two Prague teenagers uncover wireless threats using observation, documentation, and technical skill. Fiction that teaches real security concepts.
For Schools
Free lab guides, lesson plans, and hands-on simulation setups. Designed for teachers to bring network security into the classroom for students aged 16 and older. No prior cybersecurity expertise required.
What You'll Find Here
Lab Simulations
Step-by-step guides to set up controlled network environments where students can safely explore WiFi reconnaissance, evil twin detection, ARP monitoring, DNS analysis, Bluetooth tracking, and more — using the Z.R.A.K. app as their primary tool.
View Labs →
Teaching Resources
Downloadable lesson plans, worksheets, discussion guides, and assessment templates aligned to common cybersecurity education frameworks. Ready to use in the classroom with minimal preparation.
View Resources →
App Documentation
Comprehensive guide to every feature of the Z.R.A.K. Android app. Device recommendations, permission explanations, tool descriptions, and mode walkthroughs. Everything a teacher needs to know before introducing it to students.
Explore App →
Book Companion
The Z.R.A.K. book series connects fiction to real security concepts. Each book comes with teaching focus areas that map directly to the lab exercises and app features covered on this site.
See Books →
Core Learning Themes
What students take away from the Z.R.A.K. curriculum
See the Invisible
WiFi networks, Bluetooth devices, and network traffic are invisible by design. Students learn to observe the digital infrastructure that surrounds them every day.
Normal vs. Abnormal
Security starts with knowing what "normal" looks like. Baseline concepts teach students to recognize when something has changed — and when to investigate further.
Observe, Don't Exploit
Every exercise reinforces ethical boundaries. Documentation over confrontation. Evidence over suspicion. Reporting over hacking. Restraint as a security practice.
Threats Are Physical
Digital attacks require physical proximity. Students learn that wireless threats have range limits, that rogue devices need to be placed, and that geography matters.
Trust Must Be Verified
WiFi names, DNS responses, certificates, and MAC addresses can all be spoofed. Students learn that trust in networks must be earned through verification, not assumed.
Competence as Responsibility
Technical skill comes with ethical obligation. The more you can see, the more carefully you must act. Maturity means knowing when restraint applies.
Ready to bring network security into your classroom?
Everything here is free and open. No accounts, no tracking, no paywalls.