Research
What is a VPN concentrator and do you still need one?
A VPN concentrator terminates many VPN tunnels on one device. See what it does, how it differs from a firewall VPN, and the risks of a central gateway.
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 VDI and what does it change for security?
VDI runs user desktops as virtual machines in a data center and streams the screen. It centralizes control but concentrates risk. Know the NIST cautions.
Oct 18, 20264 min read
Research
What is URL phishing and how do you spot a malicious link?
URL phishing hides a fake site behind a link that looks right. Learn how links are structured, the tricks used, and the checks that stop most clicks.
Oct 18, 20264 min read
Research
What is universal ZTNA and what should you verify before adopting it?
Universal ZTNA is a market term for applying zero trust access the same way to remote, office and branch users. Verify the policy model, not the label.
Oct 18, 20264 min read
Research
What is UDP (User Datagram Protocol) and why does it matter for security?
UDP sends datagrams with no handshake or delivery guarantee, so it is fast and easy to abuse. RFC 768 and CISA explain the design and the reflection risk.
Oct 18, 20264 min read
Research
What are the main types of phishing attacks?
Phishing arrives as attachments, links, service messages and voice calls, aimed at one person or many. See how MITRE classes them and how to defend each.
Oct 18, 20264 min read
Research
What are the main types of firewalls, and which layer does each one see?
Firewall types differ by how much traffic they understand: packet filter, stateful, application, proxy, host and web. Choose by layer, policy first.
Oct 18, 20265 min read
Research
What are the main types of endpoint security?
Endpoint security is a stack: malware protection, patching, hardening, access control, encryption, device management and detection. See how they fit.
Oct 18, 20264 min read
Research
What are the types of cyber threat intelligence and who uses each?
Threat intelligence comes as indicators, behaviors, actions and analysis, often grouped as strategic, operational and tactical. Match each to its reader.
Oct 18, 20264 min read
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