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.
ESXi 8.0 general support ends 11 October 2027 and 7.0 ended 2 October 2025. Every release from ESX 4.0 to ESX 9.1, plus how patching and builds work.
From NT 3.1 to Windows 8.1, each Windows release added a security layer. Versions, support dates, what changed and how to find and isolate legacy machines.
IP anycast announces one address from many sites so BGP sends each client to one of them. How routes are chosen, where it fails, and how to run it safely.
The Lorentz force F = q(E + v × B) pushes every moving charge. Worked examples: a proton in 1 T, a motor coil, neon isotopes and a Hall sensor.
PUE is total data center energy divided by IT energy. How ISO/IEC 30134-2 defines it, where to meter, two worked examples and what the ratio hides.
SS7 and Diameter carry calls, SMS and roaming between carriers. How MAP, SIGTRAN and S6a work, why trust is weak, and what signalling firewalls fix.
WPSplinter is a Broadcom WPS overflow in older router firmware with no CVE and no reported attacks. Check your gateway, turn off WPS and ask your ISP.
Ransomware at Program Consultores, maker of PGM, took municipal tax, payment and web services offline across five Argentine provinces. What to do next.
KNX is the ISO/IEC 14543-3 building control bus. How TP, KNXnet/IP and addressing work, what KNX Secure adds, and how to keep port 3671 off the internet.
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