Security articles

Ten lines of code that stop 90% of automated abuse — credential stuffing, brute force, scraping, API abuse. Here's how to actually do it.

They're not the same attack, and they don't have the same defense. Here's the difference — and the interview-ready way to explain it.

CSP, HSTS, X-Frame-Options and the rest. A plain-English reference for every HTTP security header your web app should set before launch.

A 42 KB file that expands to 4.5 petabytes. Here's how zip-bomb denial-of-service attacks work, the real numbers behind the famous 42.zip, and how to defend against them.