Research
What is DNS tunneling and how do you spot it?
DNS tunneling hides data inside ordinary DNS queries to slip past filters. Learn how it works, the telltale signs in your logs, and how to shut it down.
Oct 18, 20264 min read
Resources
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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DIY or managed SD-WAN: how do you decide?
Run SD-WAN yourself when you have the people and want control. Buy it managed when sites are many and staff are few. Use these questions to decide.
Oct 18, 20265 min read
Research
What is distributed tracing and how does a trace stay connected?
Distributed tracing follows one request across services via a shared trace ID in a W3C traceparent header. See the fields, an example and common pitfalls.
Oct 18, 20264 min read
Research
What is a distributed firewall and when does it make sense?
A distributed firewall enforces one central policy on every host or workload, not one chokepoint. It suits cloud and remote work, with real trade-offs.
Oct 18, 20264 min read
Research
Why does cybersecurity matter more for distributed enterprises?
Offices, remote staff, clouds and partners multiply the places an attacker can enter. Zero trust principles secure them all without one perimeter.
Oct 18, 20264 min read
Research
What is a digital twin and what security risks does it add?
A digital twin is a virtual model of a physical asset kept current with data. See what NIST says, where the risks sit and how to protect its data flows.
Oct 18, 20265 min read
Research
How does digital rights management (DRM) work, and what are its limits?
DRM encrypts content and releases decryption keys only under licence terms. See how the browser pipeline works, what it protects and where it cannot.
Oct 18, 20264 min read
Research
How does DHCP work and what are its security risks?
DHCP hands out IP addresses in four messages with no built-in authentication. Learn the exchange, how rogue servers abuse it, and which controls help.
Oct 18, 20265 min read
Research
How do you detect a keylogger on your phone?
Phone keyloggers usually hide as a keyboard or accessibility service. Check keyboards, accessibility access and app sources, then reset your accounts.
Oct 18, 20265 min read
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