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.
Envoy ships a major release every quarter and patches each one for 12 months. Its Lyft origins, CNCF dates, xDS v2 to v3 and how security fixes ship.
A 5G base station is antennas, radio units, baseband split into CU and DU, eCPRI fronthaul, microsecond timing and a big software stack. How it is built.
The IANA tz database turns government clock changes into tzdata releases that ship through OS, runtime and app updates. How it works and how to check yours.
A firewall appliance pairs a general CPU with fast path silicon, a hardened Linux or BSD build, signed images and a management plane kept off the internet.
A webcam is a lens, a CMOS sensor and a firmware driven bridge chip, plus an LED and maybe a shutter. How it is built, talks to the OS and stays private.
I2P sends traffic through one-way tunnels, bundles messages as garlic and finds peers in a floodfill netDb. How it works and how it differs from Tor.
WirelessHART (IEC 62591) and ISA100.11a (IEC 62734) are industrial 802.15.4 meshes. How managers, join keys and AES-128 work, and why gateways are weak.
Bluetooth Mesh relays messages by managed flooding over BLE advertising. How provisioning, network and app keys, friend nodes and Mesh 1.1 work.
How eSIM works: the eUICC chip, SGP.22 consumer and SGP.32 IoT remote SIM provisioning, SM-DP+, activation codes, eIM, iSIM, certification and SIM swap.
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