---
title: "What Is a Keylogger? How to Detect, Test, & Defend Against Them – DataYard"
description: "Keyloggers remain one of the most effective tools in both attacks and ethical security testing -- silently capturing passwords, commands, and user input. This post breaks down how keyloggers operate and, more importantly, how to detect, test, and defend your systems against them in modern environments."
language: "en-US"
canonical_url: "https://qoxxaadhnztfjmt.onstatic.studio/cybersecurity/what-is-a-keylogger-how-to-detect-test-defend-against-them/"
source_url: "https://qoxxaadhnztfjmt.onstatic.studio/cybersecurity/what-is-a-keylogger-how-to-detect-test-defend-against-them/"
content_type: "text/markdown"
---

[
			![Data Center Power Redundancy in the DataYard Dayton, Ohio Colocation Data Center](https://qoxxaadhnztfjmt.onstatic.studio/wp-content/uploads/2026/07/BLOG-HIGHLIGHT-PHOTO-37-768x769.avif)
		](https://qoxxaadhnztfjmt.onstatic.studio/colocation/data-center-power-redundancy-blog/)



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			[
				Data Center Power Redundancy: How DataYard’s Dayton Facility Is Built			](https://qoxxaadhnztfjmt.onstatic.studio/colocation/data-center-power-redundancy-blog/)





Data center power redundancy is about more than just backup