Introduction

Many security bugs happen because engineers confuse intent.

Password storage is often treated as boilerplate.

Build “tool endpoints” your agents can call safely — scoped permissions, hard validation, audit trails, and guardrails that survive…

Build abuse-resistant throttling in NestJS that stops bots, respects real humans, and avoids nuking everyone behind the same IP.

TIMING ATTACK — Why Generic Authentication Errors Are Not Enough (And How Response Time Can Betray You) As backend engineers, we’re often taught a core security practice when building …

A practical field guide to the defenses that still work when agents browse the web, read documents, and press real buttons.

How to stop your agent from becoming a “confused deputy” by putting least-privilege, scoped approvals, and auditability between the model…

Rate limiting is commonly treated as a protective control: restrict how often an API can be called, and abuse becomes expensive or…

Mobile APIs sit at one of the most misunderstood trust boundaries in modern distributed systems.

A look at how frontend assumptions break financial systems and why backend validation is non-negotiable

If you’ve ever been curious about how apps like WhatsApp, Instagram, Uber, Spotify, or Amazon communicate with their backend servers…