Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
Slackware 1.00 shipped in July 1993; 15.0 came on 2 February 2022 and still gets patches. Release history, pkgtools, GPG checks and security fixes.
AL1 ended 31 Dec 2023, AL2 on 30 June 2026, and AL2023 runs to 30 June 2029. Every version, the repository models, ALAS advisories and how to migrate.
GrapheneOS is a hardened Android build for Pixels. Every major release from Android 10 to 17, supported devices, hardening features and how updates work.
Radioactive decay is random per atom but exponential in bulk. N(t) = N0 e^(-λt), half-life, becquerels, and carbon-14, Am-241 and Tc-99m worked examples.
Photos carry EXIF, GPS, XMP, IPTC and sometimes signed Content Credentials. What each holds, who keeps it on upload, and how to strip location safely.
How ALPR cameras read plates, what each read stores, who keeps and shares the data, and what state laws, audits and courts say about plate reader privacy.
The Arrhenius equation links reaction rate to temperature. Each term, its history, and worked examples from fridge shelf life to battery and chip ageing.
Apache CouchDB disclosed six CVEs on 20 Oct 2026, from admin command execution to a prefixed _users read bypass. Upgrade to 3.5.3; no attacks reported.
The Claude Agent SDK runs Claude Code's agent loop inside your app. How the loop, tools, permission modes, hooks and sandbox work, and how to lock it down.
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