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.
IoTDB disclosed four CVEs on 21 Oct 2026, led by legacy pipe sendFile flaw CVE-2026-59562. Upgrade server and JDBC driver to 2.0.11; no attacks known.
Recruit says up to 3,709,551 records may have leaked from Carsensor and C-MATCH; Nissan and Mitsubishi paused used-car sites built on the same system.
A card terminal pairs a secure processor and tamper sensors with EMV approved readers and kernels, then passes PCI PTS POI lab testing before keys go in.
DOCSIS carries internet over cable TV networks. How a cable modem boots, how Baseline Privacy Plus encrypts and signs, and what DOCSIS 4.0 changes.
Geneve (RFC 8926) carries overlay traffic in UDP port 6081 with a 24 bit VNI and TLV options. How the header works and how to secure it on a real underlay.
sFlow samples 1 in N packet headers and polls interface counters, sending both over UDP 6343. How it works, its accuracy and how it differs from IPFIX.
L2TP carries PPP or any layer 2 frame across IP with no encryption. How the control channel, cookies and pseudowires work, and how to lock L2TP down.
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.
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