Masnir Security Team

Research & Engineering

The Masnir Security Team researches and secures modern cloud, AI, and automotive systems. We publish field-tested tutorials, original research, and honest analysis.

Articles by Masnir Security Team

AI SecurityFeatured

Prompt Injection: A Defense-in-Depth Playbook for LLM Applications

Prompt injection is the SQL injection of the LLM era. Here is a practical, layered defense strategy — from trust boundaries to output handling — with concrete patterns you can ship.

Jul 8, 20263 min read

AWS

Securing Amazon S3: Beyond "Block Public Access"

Blocking public access is table stakes. This tutorial covers the S3 controls that actually prevent data exposure — scoped bucket policies, VPC endpoints, and default encryption.

Jun 28, 20262 min read

Automotive SecurityFeatured

Threat Modeling the CAN Bus in Modern Vehicles

The CAN bus was designed for reliability, not security. We walk through its trust model, realistic attack paths, and the defensive controls automakers are adopting.

Jun 15, 20262 min read