Level up your whole tech career
Master Cybersecurity
One gamified arena for the entire tech stack. Start with hands-on blue-team labs and SOC investigations, then grow into coding, AI, exam prep and AI study tools - all with the same XP, ranks and seasons.
Free to start · no credit card required
$ ▋
Every skill, one arena
Start with blue-team cybersecurity - then grow into coding, AI, exam prep and study tools, all with the same XP, ranks and gamified progression.
Cybersecurity Learning
LiveHands-on blue-team labs, SOC investigations and CTF challenges with an animated attack replay.
- SOC investigations
- Detection engineering
- CTF challenges
Coding Learning
SoonGuided, project-based tracks that teach real programming - from fundamentals to shipping.
- Interactive lessons
- Auto-graded projects
- Language paths
AI & Machine Learning
SoonLearn ML by building - notebooks, model challenges and applied AI mini-projects.
- ML foundations
- Model challenges
- Applied AI
Vendor Exams
SoonRealistic mock exams for the certs that matter - timed, scored and explained.
- Timed mock exams
- Question bank
- Score analytics
Student Tools
SoonAn AI toolbelt for studying: detect AI text, get tutored, and get help writing research.
- AI Detector
- AI Tutor
- Research Writer
Solve a real question right now
Here's a slice of a threat hunt. Read the connection log, spot the command-and-control beacon, and submit the IP - exactly like a real lab task.
$ zeek-cut id.orig_h id.resp_h id.resp_p < conn.log
10.10.14.23 → 93.184.216.34 :443 ssl
10.10.14.10 → 142.250.72.14 :80 http
10.10.14.23 → 45.77.122.9 :443 ssl (x15, 60s interval)
10.10.20.5 → 151.101.1.140 :443 ssl
Which IP is the C2 beacon?
Hint: one host beacons on a fixed interval.
Blue-team domains
See labs by domain →$ zeek-cut id.orig_h id.resp_h service < conn.log
10.10.14.23 → 45.77.122.9 ssl (beacon x15, 60s)
10.10.14.10 → 142.250.72.14 http
Built for real defenders
Most platforms teach you to attack. CyberNexura trains you to detect, investigate, and respond - the way a real SOC works.
Real evidence, your tools
Download actual PCAPs, EVTX, memory dumps and phishing emails and analyze them in Wireshark, Zeek, or your own SIEM - not a locked-in browser VM.
Blue-team first
Purpose-built for defenders across SOC, DFIR, threat hunting and IR - not an afterthought bolted onto an offense platform.
Zero setup, works offline
Nothing to boot, no cloud machine to wait on. Pull the evidence and start investigating anywhere - even air-gapped.
Fair, instant grading
Findings are checked server-side, points scale with difficulty, and the full analyst writeup unlocks the moment you finish.
How it works
Download the evidence
Grab the real artifacts - PCAPs, event logs, memory images, phishing emails - and open them in your own tools.
Investigate and submit
Work the scenario, answer the graded questions, and get instant feedback. Answers are checked server-side.
Earn rank and climb
Score points scaled by difficulty, unlock the analyst writeup, and rise up the leaderboard.
Featured labs
Real scenarios you can start right now.
Cloud Compromise - The Exposed AWS Access Key
A long-lived AWS access key was committed to a public GitHub repo and abused within minutes to mine crypto and plant a backdoor IAM user.
Ransomware Precursor - The Living off the Land Execution
An internet-facing Confluence server was exploited and used to stage a Cobalt Strike beacon, run AD recon, and begin lateral movement - the classic 60 minutes before ransomware.
Credential Theft - The Session Cookie Reuse
An employee's live HR portal session was hijacked and used to reroute their payroll direct deposit.
Climb the ranks
Every solved task earns points. Progress from your first login to the top of the SOC.
A library that grows with the community
Every analyst has a war story. Soon you'll be able to publish your own labs and writeups, so CyberNexura becomes an ever-growing bank of real-world defensive scenarios - authored by defenders, for defenders.
One platform, three fronts
The platform grows one facet at a time - defense first, then AI-assisted analysis, then offense.
Questions, answered
Do I need to install anything?
No. Download the evidence files and analyze them in your own tools - Wireshark, Zeek, a SIEM, whatever you use. Nothing to boot, works even offline.
Is CyberNexura for beginners or pros?
Both. Start with the First Shift onboarding path, then climb from Easy labs all the way to the advanced Pro Range.
How is my work graded?
Findings are checked server-side and points scale with difficulty. The full analyst writeup unlocks the moment you complete a lab.
Is it free?
Yes - core labs, leaderboards, seasons and learning paths are free forever. Pro unlocks the advanced Pro Range and upcoming certifications.
Which domains are covered?
Network forensics, endpoint / DFIR, log analysis / SIEM, malware analysis, threat hunting, incident response, and email / phishing.
Ready to run your first investigation?
Create a free account and solve your first lab in minutes. Join 2 analysts already training.
Start free