Malicious Extensions — CompTIA A+ Core 2 (220-1102) Practice Questions

Malicious browser extensions are add-ons installed in a web browser that appear legitimate but perform unauthorized actions such as capturing keystrokes, injecting ads, redirecting searches, or exfiltrating browsing history. The A+ Core 2 exam includes this topic under software and browser security, as extensions are a common attack vector because many users install them without scrutinizing permissions. Technicians should know how to audit installed extensions, identify suspicious ones, and remove them through the browser's extension management interface. Educating users to install extensions only from trusted sources and official stores is also a relevant best practice.

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• What is the primary risk of installing browser extensions from untrusted sources? Unlock answer & explanation →