Certifications aren’t inherently useless. Some are necessary. Others can be helpful when paired with real work. But on their own, they rarely change hiring outcomes.

A practical MCP security benchmark for 2026: scoring model, risk map, and a 90-day hardening plan to prevent prompt injection, secret leakage, and permission abuse.

The real answer is less magic and more mindset: a systems principle called Postel’s Law. In plain language: Be strict in what ...