Acronym study
Terms 511–514 of 514 CS0-003 acronyms and key terms. Each entry includes a plain-English definition and a link to the full 800-word glossary page with exam context and practice questions.
Term 511
XDR, or Extended Detection and Response, is a unified security platform that collects and correlates data across multiple security layers—endpoints, networks, servers, cloud workloads, and email—to improve threat detection and enable faster response.
Term 512
Cross-Site Scripting (XSS) is a security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users.
Term 513
YARA is a pattern-matching tool used by cybersecurity professionals to identify and classify malware based on textual or binary patterns.
Term 514
A zero-day is a software security flaw that is unknown to the vendor and has no patch available, making it extremely dangerous because attackers can exploit it before anyone knows it exists.