Things I build, break, fix, and write about

17 September 2026
Require a BitLocker pre-boot PIN

TPM-only BitLocker is tidy until you remember what is left exposed when the machine can unlock itself. BitLocker PINs are the small, awkward step that makes a stolen laptop less cooperative, and I trust that far more than wishful thinking about physical security.

17 September 2026
Secure connectivity principles in water sector OT

Secure connectivity principles only work when the boundary is real, not decorative. I’ve seen too many remote paths that looked neat on paper and fell...

16 September 2026
Monitoring radio, transport and core faults

Private 5G resilience does not come from a cheerful dashboard or a nice radio map. I want to see where the attach failed, which path dropped, and...

16 September 2026
Pre-boot authentication for BitLocker

TPM-only BitLocker is convenient, but convenience is not the same as a proper boundary. BitLocker PINs push that line back to pre-boot, which is where...

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27 April 2026
Network segmentation for vehicle telemetry in Home Assistant

Modern cars are noisy little computers, and vehicle telemetry isolation only works if you treat them that way from the start. I put the car on its own VLAN, lock the firewall down, then let Home...

26 April 2026
Isolating Android on a VLAN with firewall rules and DNS split

I would not migrate an Android phone into my homelab blind. A clean Android homelab firewall DNS split, with VLAN isolation and hard DNS rules, keeps the phone useful without letting it sniff around...

26 April 2026
Security Advisory – 24 Apr 2026

Daily security advisory summary for 24 Apr 2026

25 April 2026
Setting lifecycle tracking for kitchen appliances with Home Assistant

I stopped treating appliance failure as a surprise and built a Home Assistant replacement schedule around dates, run counts, and service history. It is plain, slightly dull, and far more useful than...

25 April 2026
Security Advisory – 24 Apr 2026

Daily security advisory summary for 24 Apr 2026

24 April 2026
Network segmentation with VLANs, DNS and firewall rules

A proper network blueprint is mostly unglamorous discipline, VLANs with a job, DNS that stays in its lane, firewall rules that mean something, and DHCP reservations that do not rely on memory. Get...

24 April 2026
Security Advisory – 23 Apr 2026

Daily security advisory summary for 23 Apr 2026

23 April 2026
Safe ways to remove Copilot from Windows applications

Windows has a habit of putting Copilot back after updates, so I check policy first, then the package itself. If you need to remove Microsoft Copilot from Windows properly, the trick is knowing which...

23 April 2026
n8n | stable

n8n 2 17 5: enforces credential access for dynamic node parameters, fixes credential exposure risk, upgrade recommended for admins and self hosted users

23 April 2026
Security Advisory – 21 Apr 2026

Daily security advisory summary for 21 Apr 2026