Sam Cater's Blog

Taking a Hacksaw to Cujo

In the 'traditional' connected home, the trust boundary was usually defined by the ISP-provided router. The device could be methaphorically seen as a wall of the home - anything on the inside is trusted by default, anything outside is untrusted by default.

InfoSec and BSides 2018

This week I got to enjoy going to InfoSecurity 2018 and BSidesLondon 2018. Both of these events are something I look forward to every year - they're probably the best of their kind

How to Fix Broken Websites Protected by CloudFlare

Recently I've come across several websites which have (for some non-obvious reason...) decided to stand Cloudflare's protection services in front of their own website. Maybe for DDoS protection, maybe to filter down requests

raspberrypi

Raspberry Pi 3B+ - Why the Link/Active LAN Lights "Don't Work"

To help diagnose network problems and/or tell users what speed the network attached to the Pi is running at, the Raspberry Pi devs have used the lights to signify whether 10/100Mb or 1000Mb is being used by the interface.

My Blog Is Used for Malware C&C! (Good?!)

I looked on VirusTotal recently and noticed something interesting when I entered my own domain and IP address... Since I run a Tor Relay node, I'm passing approximately 20Mbits of traffic between other

Quick thoughts on Bitcoin and the future of International Currency

I recently had a student from a local university meet me and ask if I could provide some contributions to their project which asked the question (paraphrased) - "Can Cryptocurrency be the

Mixed Thoughts on Promotional Security

A friend of mine recently went on a trip to Amsterdam, as he often does. He tweeted that the airport WiFi promoted the use of VPNs - so I asked for some screenshots,

Capturing Beacons and Probe Requests of Public WiFi Access Points - The Why, How, and Stats

Why Bother, Why Should I Care? Most people have a misconception about WiFi and assume that the Access Points are always broadcasting somehow to make themselves visible to devices. When device's see a