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.
A satellite is a payload on a bus of power, attitude, thermal, radio and computer subsystems, proven by vibration and vacuum tests, run by software.
The Fourier transform splits a signal into its frequencies. See how it went from Fourier's heat equation to the FFT inside Wi-Fi, 5G, JPEG and MP3.
Shannon entropy measures average surprise; cryptography uses min-entropy, the odds of the best single guess, to size keys, tokens and RNG seeds.
Escrow every BitLocker and FileVault recovery key centrally, prove coverage weekly, rotate any key once it is revealed, and log and review every read.
No standard defines a DataBOM. SPDX 3 has a Dataset profile and CycloneDX has data components. Here is every field, a mapping and a validated example.
SPDX went from 1.0 in 2011 to 2.3 in 2022, ISO/IEC 5962 (2.2.1) in 2021 and 3.0.1 in 2024. What each version added and how to move from 2.3.
Wi-Fi 7 MLO binds several radio links into one association with one set of pairwise keys. How WPA3, PMF, MLD addresses and monitoring change for defenders.
DDR5 splits each DIMM into two subchannels, adds on-die ECC and a PMIC, and fights Rowhammer with RFM and PRAC. What each does, and what research showed.
A PCR is a TPM register you can only extend, never set. What PCRs 0 to 15 measure, how to read the boot event log, and how to bind disk keys safely.
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