Tags: csp



Sunday, January 7th, 2018

I’m harvesting credit card numbers and passwords from your site. Here’s how.

This is a “what if?” scenario, but it’s all too plausible.

For site owners, the (partial) solution is to have a strong Content Security Policy.

For users, the solution is to disable JavaScript.

(In the wake of Spectre and Meltdown, this is now a perfectly legitimate action for security-conscious web users to take; I hope your site can support that.)

Friday, April 15th, 2016

GitHub’s CSP journey - GitHub Engineering

A step-by-step walkthrough of how GitHub has tweaked its Content Security Policy over time. There are some valuable insights here, and I’m really, really happy to see companies share this kind of information.

Tuesday, January 12th, 2016


A quick way of testing for some fairly easy to fix security leakage from your server’s headers.

I say easy to fix, but I find the fix for public key-pins pant-shittingly intimidating.