Application Security
Safeguard articles tagged "Application Security" — guides, analysis, and best practices for software supply chain and application security.
100 articles
What is application acceleration and what does it cost in security?
Application acceleration speeds web delivery with caching, compression, multiplexing and faster handshakes. Each trick has a security trade-off to check.
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.
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.
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.
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.
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.
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.
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.
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.
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.
What is a proxy firewall and when do you need one?
A proxy firewall sits between two hosts and splits each connection in two so it can inspect content. What it does well, what it costs, and how to decide.
What is a proxy firewall and how does it differ from other firewalls?
A proxy firewall sits between two hosts and never lets them connect directly, inspecting content as it relays. See the benefits, costs and when to use one.
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