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.
Attacker Mindset — Network · modules
Segmentation, Layer 2 trust, C2 evasion, Kerberos, VPN, BGP, OT, wireless — why each class of network attack persists.
Module 8 · OT / ICS at the Network Layer
Stuxnet, Industroyer, Triton, Oldsmar. Why PLCs reachable from IT is catastrophic and common.
Module 9 · Wireless — The Perimeter That Moves
Evil Twin, KRACK, PMKID, rogue 802.1X, BLE. $40 of hardware extends the perimeter past the building.
Module 10 · Why Network Detection Underperforms
Encrypted traffic, volume overload, alert fatigue. Why attacker dwell time is weeks to months on average.
Module 1 · The Network Is Never Flat
Segmentation on paper vs reality. Every network has exceptions attackers exploit for lateral movement.
Module 2 · Layer 2/3 Trust — ARP, DNS, LLMNR Poisoning
Responder, mitm6, NTLM relay. Protocols designed in 1990 still farming credentials in 2026.
Module 3 · Why Firewalls Miss Modern C2
HTTPS C2, DNS tunneling, DoH, domain fronting, living-off-the-cloud — attackers use permitted traffic for everything.
Module 4 · Why Kerberos Keeps Producing Attacks
Kerberoasting, AS-REP, Golden Tickets, Silver Tickets, delegation abuse. Not bugs — design features in a new threat model.
Module 5 · SSH, RDP, SMB, WinRM — The Lateral Movement Highway
Every enterprise's admin protocols are attackers' rails. Credential reuse + cached credentials = fast compromise.
Module 6 · VPN Appliances — The Crown Jewel
Ivanti, Fortinet, Citrix, Palo Alto — every year a critical CVE. Patching speed vs attacker speed.
Module 7 · BGP, DNS, CAs — Internet-Scale Trust Failures
BGP hijack + DNS poisoning + TLS cert abuse = traffic interception at scale. Real breaches, real tools.
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.