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About

Welcome to The Identity Perimeter, an engineering and architecture blog by Arvind Jha.

The Mission​

As enterprises migrate to hybrid cloud environments, adopt microservices, and deploy autonomous artificial intelligence workloads, the traditional network perimeter has completely dissolved.

The goal of this publication is to provide practical, field-tested guidance on modern Identity and Access Management (IAM), Zero Trust Architecture, and Security Engineering without the vendor hype.

Core Focus Areas​

  • Identity & Access Management (IAM): Core design patterns, Role-Based & Attribute-Based Access Control (RBAC/ABAC), and automated Joiner-Mover-Leaver (JML) lifecycles.
  • Zero Trust & Network Security: Transitioning from traditional castle-and-moat VPNs to identity-aware proxies, micro-segmentation, and contextual risk engines.
  • Non-Human Identity (NHI) Governance: Managing the explosion of service accounts, CI/CD pipeline access, Secrets Vaulting, and ephemeral token lifecycles.
  • Autonomous & AI Workload Security: Scoping API tokens, designing AI Guardrail Proxies, preventing Prompt Injections, and enforcing Human-in-the-Loop circuit breakers.
  • Target Operating Models (TOM): Pragmatic roadmaps across Horizons 1, 2, and 3 tailored for organizations scaling from startups to global enterprises.

The Book​

Alongside regular articles, this site hosts the complete online edition of A Guide to IAM in the AI Era, a 13-chapter technical guide complete with interactive architecture simulators.

Connect & Collaborate​