Skip to main content

An official website of the United States government

Fire Effects Information System
A photo of bushy, leafy forbs with light pink flowers growing on a forest floor.

Spyware Definitions List [ 2025-2026 ]

Spyware Definitions List [ 2025-2026 ]

Spyware is generally categorized by how it functions and what it targets: Recognizing and Avoiding Spyware - CISA

Spyware is a form of malware designed to infiltrate your device, record your actions, and transmit that data to a third party without your consent . While often hidden, it can cause noticeable performance issues like slow speeds or unexpected crashes . Core Spyware Definitions Spyware Definitions List