Reference-grade
Designed to be the canonical resource — bilingual, structured info, comprehensive guides, and clear citations.
Become an identity security practitioner.
A bilingual, accessible reference to master identity security — from foundations to advanced practice. Curated paths, gamified labs, and visual schemas.
Built for serious learners
WCAG 2.2
Accessible by default. Keyboard nav, prefers-reduced-motion, AAA contrast on critical paths.
Visual, interactive
Diagrams, sketches, and labs that ramp from beginner to expert — your progress stays on your device.
Explore the domains
Explore all- 01
What is digital identity?
An introductory guide to the foundational concept of IAM: definition of digital identity, the concepts that get confused (subject, identity, account, profile), and the building blocks that make it operational (attributes, claims, entitlements, and credentials).
- 02
Authentication factors: the five categories
The five categories of authentication factors with their specific implementations (passwords, TOTP, push, FIDO2, biometrics, context), the difference between SFA/2FA/MFA, step-up authentication, and risk-based adaptive authentication (RBA).
- 03
Modern identity types and the new perimeter
Beyond human users: identities of devices, workloads, and AI agents. Why the entire industry now says that identity — not the network — is the new security perimeter.