Application Security
What is an SMB null session and how do you block it?
An SMB null session is an unauthenticated connection to a Windows host. Block it by restricting anonymous access and enumeration in security policy.
Oct 18, 20265 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 an open redirect vulnerability and how do you fix it?
An open redirect sends users to any address a link supplies, which makes phishing look trustworthy. Fix it by allowing known paths or hosts only.
Oct 18, 20265 min read
Application Security
What is an authentication token and how do you protect one?
An authentication token proves who you are after login, so stealing one skips the password. Learn how bearer tokens, JWTs and session IDs differ.
Oct 18, 20264 min read
Application Security
What is an air gap and does it still protect you?
An air gap separates systems with no automated connection, so data crosses only by human action. It cuts exposure but is not absolute. Run one well.
Oct 18, 20264 min read
Application Security
What is a zero-day vulnerability, and how do you prepare for one?
A zero-day is a flaw exploited before a fix exists. You cannot patch it yet, so shrink exposure, limit blast radius and be ready to patch within hours.
Oct 18, 20265 min read
Application Security
What is a VPN gateway and how should you secure one?
A VPN gateway terminates encrypted tunnels at the edge of your network. It sits on the internet, so patching, access limits and logging come first.
Oct 18, 20264 min read
Application Security
What is a software firewall and when is it enough?
A software firewall runs on one computer and controls its inbound and outbound traffic. Learn how it differs from a network firewall and how to set one up.
Oct 18, 20264 min read
Application Security
What Is a Self-Signed Certificate and When Is It Safe to Use?
A self-signed certificate vouches for itself, so nobody else can verify it. It is fine for local tests but risky for public sites. Learn the safer options.
Oct 18, 20264 min read
Application Security
What is a secure web gateway and how does it work?
A secure web gateway filters sites, scans downloads and enforces policy between users and the internet. See how it works, TLS inspection and limits.
Oct 18, 20264 min read
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