Supply Chain Security
In-depth guides and analysis on supply chain security from the Safeguard engineering team.
100 articles
Emergency Communications in a Power Cut: Radios, Alerts and Mast Backup
In a power cut, a battery or wind-up FM radio keeps you informed, cell broadcast alerts still reach phones, and mobile masts run on limited backup power.
pfSense and OPNsense Release History: FreeBSD Bases and Support
pfSense CE 2.9.0 runs on a FreeBSD 16.0-CURRENT snapshot; OPNsense 26.7 runs on FreeBSD 15.1. Every release, base, numbering scheme and support rule.
Drupal 7 After End of Life: Extended Support, Migration and Backdrop
Drupal 7 lost security support on 5 January 2025. What stopped, what extended support covers, moving to Drupal 11 or Backdrop, and what to patch.
CHAOSS Explained: Health Metrics, Metrics Models, Augur and GrimoireLab
CHAOSS is a Linux Foundation project that defines open source community health metrics and metrics models, plus the GrimoireLab and CollectOSS tools.
Tool Selection for AI Agents: Tool Search, Deferred Loading, Poisoning
AI agents pick tools from names, descriptions and schemas in context. Why big catalogs hurt accuracy, how tool search helps, how descriptions get poisoned.
Eclipse SW360 Explained: Component Catalog, License Clearing and SBOMs
Eclipse SW360 is an open source component catalog for license clearing, obligations and SBOM import and export. Here is how it works and how to run it.
OTS Breach: Up to 730,000 Customers and Driver's Licence Numbers
Okinawa Tourist (OTS) says data on up to about 730,000 customers leaked, including Japanese licence numbers. What leaked, what is unknown and what to do.
FFVoile Breach: 2 Million Records Taken via a Data Analysis Tool
France's sailing federation says a data tool flaw let an attacker extract over 2 million records, some club IBANs included. What leaked and what to do.
How Quantum Programs Are Compiled: OpenQASM 3 and Qubit Routing
A quantum compiler maps circuits onto a chip's qubits, inserts SWAPs and rewrites gates into native ones. OpenQASM 3, routing and the open source SDKs.
Z-Wave Explained: Sub-GHz Mesh, S2 Security, SmartStart and Long Range
Z-Wave is a sub-GHz smart home protocol with a source routed mesh. How S2, SmartStart QR provisioning and Z-Wave Long Range work, and how to secure them.
How to Run a Tor Relay: Guard, Middle, Exit, Bridge, Legal, Hardening
Run a Tor relay safely: pick bridge, middle, guard or exit, meet bandwidth needs, install from the Tor repo, set torrc, handle abuse and harden the host.
Wi-Fi Sensing Explained: IEEE 802.11bf, CSI, Motion Detection, Privacy
Wi-Fi sensing infers motion and presence from changes in radio signals. What IEEE 802.11bf standardises, what it can reveal, and how to limit it at home.
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