Things I build, break, fix, and write about

5 November 2026
Embedded payloads in trojanised PDF viewers

Modified PDF viewers are a neat little delivery trick because they look like ordinary job bait until someone opens them. I keep coming back to the same point, the file name is not the danger, the loader path is; that is where the unwanted code slips in.

5 November 2026
Ransomware group fragmentation and detection priorities

Ransomware group fragmentation means the label matters less than the behaviour, and I trust activity over reputation every time. A small crew with...

5 November 2026
Security Advisory – 05 Nov 2026

Daily security advisory summary for 05 Nov 2026

4 November 2026
Linux kernel net/sched UAF constraints on CentOS 9 desktop

Linux kernel net/sched use-after-free looks messy on paper, and on CentOS 9 Desktop it is worse, because the obvious paths are blocked and the useful...

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8 December 2025
Troubleshooting Let’s Encrypt certificates on a Sophos firewall

Troubleshoot Lets Encrypt certificate failures on a Sophos firewall. You confirm DNS A records, port 80 reachability and that the ACME HTTP-01 token URL returns HTTP 200. Use dig and curl to test the...

8 December 2025
Blink Outdoor 4 Camera + 2 more Amazon tech bargains

Discover the Blink Outdoor 4 camera and two more Amazon tech deals this week.

8 December 2025
Controlling camera access on MacOS devices

Learn how to securely grant USB camera access on a Mac for four specific users. Explore user permissions, camera settings, and effective management strategies.

7 December 2025
Using Safe Mode to remove Sophos Tamper Protection

Remove Sophos Tamper Protection offline using Safe Mode when your device cannot check in. You get clear checks, commands and remediation steps. Reboot to Safe Mode, stop Sophos services, remove files...

7 December 2025
Weekly Tech Digest | 07 Dec 2025

Stay updated with the latest in tech! This digest covers AI ethics, auto industry shifts, and the impact of politics on technology, exploring today's pressing issues.

7 December 2025
Best practices for Sophos XGS HA cluster configurations

Peer Administration on a Sophos XGS HA cluster only behaves if the network layout is thought through first. Keep client traffic, the HA heartbeat and management on separate paths where you can. A...

6 December 2025
Configuring Sophos Connect to force a login when using Entra SSO

Discover how to configure Sophos Connect to enforce login prompts for SSO users, preventing authentication failures and ensuring smooth third-party access.

5 December 2025
Using n8n snapshots for backups that restore

n8n backup patterns: Use CLI exports, database dumps and VM snapshots for layered protection. Automate daily exports and weekly snapshots, keep one offsite copy, and encrypt credential backups. Test...

5 December 2025
Choosing Reliable Self-Hosted Accounting Software for UK Self-Employed

Discover the essentials of choosing reliable self-hosted accounting software for UK self-employed individuals, ensuring data control and efficient financial management.

5 December 2025
Creating a wall-mounted dashboard with Home Assistant

Home Assistant Tablet Dashboard offers a wall-mounted control panel for your smart home. You will learn how to pick hardware, install Home Assistant, build a fast Lovelace dashboard and keep the...