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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9 November 2025
Setting up a 16-port 10Gb switch in your home lab

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9 November 2025
Weekly Tech Digest | 09 Nov 2025

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9 November 2025
Troubleshooting common Windows Group Policy issues

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8 November 2025
Identifying common Wi‑Fi configuration mistakes

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8 November 2025
Booting from recovery media for repairs

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7 November 2025
Measuring quantum advantage with the OTOC method

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7 November 2025
OpenAI Atlas and the privacy settings worth checking

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