Token revocation, refresh requests, and the point where a web or mobile session actually ends.

Valid credentials do not guarantee that a request is safe.

AI can build a working web app surprisingly fast. The interesting part begins when you stop asking whether the code works and start asking…

I thought I understood how websites worked until I stopped looking at the page and started looking at the requests behind it.

In the previous post, I looked at how REST APIs are designed: addresses, HTTP methods and status codes. But there is a question I haven’t…

Master API security in 2026 with 7 essential protections against data breaches, broken access controls, injection attacks, and API abuse.

Two critical PHP flaws, AI-assisted exploit research, and the runtime update your application dashboard may never show you.

The mindset after cracking 10 PortSwigger business-logic labs.

A login page can look secure. An API can return perfectly valid responses. A password reset flow can appear protected. But what happens…

I have a WordPress project running on PHP 8.3.6, and on Wednesday the version I need to be on became 8.3.36. That is the whole of my…

I used to think web security was mostly about learning the right tools. Building an intentionally vulnerable application taught me…

Imagine opening a website, sending a request, and unknowingly triggering a weakness that could allow an attacker to run commands on the…

A hidden field can catch spam. The harder part is knowing whose request never reached you.

How a hidden PHP flaw, an AI discovery and an early leak took websites offline on 22 October 2026, and what you should do now.

How an invalid block switch led to memory corruption, and what the patch changes.

Two memory bugs, the fixes, and what developers should update.

Two vulnerabilities hidden in one of the internet’s most widely used programming languages triggered emergency security patches…

Every company that runs our free Surface Check gets an A to F grade for the part of their security that faces the public internet. We have…

Every bug bounty hunter knows the feeling: you’ve mapped the live site, poked every parameter, and found nothing. The bug is probably…

Path traversal is one of those bugs that sounds simple until you realise what it actually means: an attacker can read your.env, your source…