Cybersecurity, learned like a practitioner.
24 learning paths · 398 modules live · every lesson written by someone who has shipped the control or run the engagement. Free to start.
Advanced · modules
Modules tagged Advanced. Use the sidebar to narrow by track or topic.
Kerberos Delegation Abuse
Unconstrained, constrained, RBCD. S4U2Self + S4U2Proxy, MachineAccountQuota, PetitPotam coercion.
SSH, RDP, SMB, WinRM — The Lateral Movement Highway
Every enterprise's admin protocols are attackers' rails. Credential reuse + cached credentials = fast compromise.
VPN Appliances — The Crown Jewel
Ivanti, Fortinet, Citrix, Palo Alto — every year a critical CVE. Patching speed vs attacker speed.
BGP, DNS, CAs — Internet-Scale Trust Failures
BGP hijack + DNS poisoning + TLS cert abuse = traffic interception at scale. Real breaches, real tools.
OT / ICS at the Network Layer
Stuxnet, Industroyer, Triton, Oldsmar. Why PLCs reachable from IT is catastrophic and common.
Wireless — The Perimeter That Moves
Evil Twin, KRACK, PMKID, rogue 802.1X, BLE. $40 of hardware extends the perimeter past the building.
Why Kerberos Keeps Producing Attacks
Kerberoasting, AS-REP, Golden Tickets, Silver Tickets, delegation abuse. Not bugs — design features in a new threat model.
Business Logic — Where Scanners Fail
Business logic bugs are legal sequences of actions producing illegal outcomes. Understand the product to find them.
Why SSRF Is Still Critical in 2026
Every URL parameter where the server fetches. Cloud metadata turned SSRF from inconvenience to catastrophe.
Why XSS Persists — Context Is Everything
Framework defaults cover one HTML context. Every other context — URL, CSS, JSON-in-script — is fresh attack surface.
Practitioners who've
shipped the controls.
Every module is written by someone who has built the defence or run the engagement. No repackaged tutorials, no generic theory.
Why learn here
Practitioner-written.
Each lesson is authored by someone who has shipped the control or run the engagement in production.
Quiz after every module.
20+ questions with explanations. 70%+ to mark complete. Unlimited retries.
Progress tracked.
Completions, scores and streaks saved automatically. Resume exactly where you left off.
India-priced.
Start free. ₹499/mo for intermediate. ₹4,999/yr for advanced. No hidden fees, ever.