Concepts
What Is an Artifact Attestation?
An artifact attestation is a signed, machine-readable claim about a software artifact, bound to it by digest. Here's how the in-toto structure works and what kinds of claims it carries.
Jul 4, 20266 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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What Is a Security Patch
A security patch is a small update that fixes a specific flaw in software. Here is what patches are, why applying them quickly matters, and how teams manage them.
Jul 4, 20266 min read
Concepts
Symmetric vs Asymmetric Encryption: What's the Difference?
Symmetric encryption uses one shared key for both locking and unlocking. Asymmetric encryption uses a key pair, one public and one private. One is fast; the other solves the key-sharing problem.
Jul 4, 20266 min read
Solutions
Software Supply Chain Security for Compliance Officers
For compliance officers, supply chain security is an evidence problem before it is a technical one. Here is how to map controls to frameworks, keep evidence current, and pass an audit without turning your engineers into a documentation team.
Jul 4, 20266 min read
Vulnerability Analysis
Baron Samedit (CVE-2021-3156) Explained: The Sudo Root Overflow
CVE-2021-3156, Baron Samedit, is a heap overflow in sudo that gives any local user root and hid in plain sight for nearly a decade. Here is the root cause, a one-line test, and the patched version.
Jul 4, 20266 min read
Solutions
Software Supply Chain Security for Startups
For a startup, supply chain security is less about compliance mandates and more about closing enterprise deals and surviving the incident that could end you. Here is how to get it right with a small team.
Jul 4, 20265 min read
FAQ
Shift-Left Security FAQ: 2026 Explained
Common questions about shift-left security answered for 2026 — what it means, why earlier is cheaper, how it works in practice, and how to avoid overwhelming developers.
Jul 4, 20265 min read
Container Security
Securing the Kubernetes API Server
The API server is the front door to your cluster — every kubectl command, controller, and kubelet talks to it. If it is misconfigured, nothing else you harden matters. Here is how to lock it down.
Jul 4, 20265 min read
Container Security
Securing Container Registries: From Push to Pull
Your registry is the single point every image passes through — and a favorite target for attackers who want to poison many deployments at once. Here is how to lock it down end to end.
Jul 4, 20265 min read
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