Research
What is quantum key distribution and should you use it?
QKD shares keys using quantum physics but needs special hardware and does not authenticate anyone. NCSC and NIST point to post-quantum cryptography first.
Oct 18, 20264 min read
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Supply Chain Security, in plain English.
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.
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What is quantum cryptanalysis and which encryption does it threaten?
Quantum cryptanalysis attacks cryptography with quantum algorithms. Shor's threatens RSA and elliptic curves. Inventory your crypto and plan for NIST PQC.
Oct 18, 20264 min read
Research
What is quantum computing security, and how do PQC and QKD differ?
Post-quantum cryptography runs on ordinary computers and is what standards bodies urge you to adopt. QKD needs special hardware. See how they differ.
Oct 18, 20264 min read
Research
What is quality of service (QoS) and how does DiffServ work?
QoS lets a network treat some traffic better than the rest. DiffServ marks packets into classes so voice stays smooth when links are busy. The model.
Oct 18, 20264 min read
Research
What is QoS (quality of service) and how does DSCP marking work?
QoS gives some network traffic priority when links are busy. See how DiffServ marking works, which classes to start with and why marking needs policing.
Oct 18, 20265 min read
Research
What is the Purdue Model and how is it used for ICS security?
The Purdue Model arranges industrial systems into levels from physical process to enterprise network. Learn the levels, what it gets right and its limits.
Oct 18, 20264 min read
Research
Public vs private cloud: how do you choose?
Public cloud is shared infrastructure open to many customers, private cloud is for one organization. Compare control, cost, security duties and fit.
Oct 18, 20265 min read
Research
What is a PST file and why should security teams care about it?
A PST file is an Outlook data file that stores mail and other items on a local disk. It can hold old email outside central control, so find and manage it.
Oct 18, 20264 min read
Research
Proxy firewall vs packet filtering firewall: what is the difference?
A packet filter checks headers and is fast. A proxy firewall ends connections and understands the application. See when each fits and what stateful adds.
Oct 18, 20264 min read
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