<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Ddm on Matt Parker</title><link>https://mattparker.com/tags/ddm/</link><description>Recent content in Ddm on Matt Parker</description><generator>Hugo -- 0.155.1</generator><language>en</language><lastBuildDate>Fri, 30 Jan 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://mattparker.com/tags/ddm/index.xml" rel="self" type="application/rss+xml"/><item><title>Sentinel: Building a CVE-Aware macOS Update System</title><link>https://mattparker.com/posts/sentinel-update-system/</link><pubDate>Fri, 30 Jan 2026 00:00:00 +0000</pubDate><guid>https://mattparker.com/posts/sentinel-update-system/</guid><description>How I built a two-component macOS update management system that ties CVE severity directly to deployment urgency — so users get accurate security context and admins get phased rollouts that automatically accelerate when it matters.</description></item></channel></rss>