Spyware typically follows a three-step process to compromise your security:
A Basic Introduction to Spyware Spyware is a type of malicious software () designed to infiltrate your device, gather sensitive information about you, and send that data to a third party without your knowledge or consent. Unlike a computer virus that might aim to destroy files, spyware’s primary goal is to remain invisible for as long as possible while acting as a "digital spy". How Spyware Works
What Is Spyware? Definition, Types And Protection - Fortinet