What kind of software is classified as adware?

Adware is classified as software that displays advertisements without user approval. It typically generates revenue for its creator by showing ads within the application or while users are browsing the internet. This type of software can disrupt user experience as it may pop up unsolicited ads, often in a manner that can be intrusive and annoying.

Adware can also track user behavior to tailor advertisements to the individual user, which raises privacy concerns. Unlike software that enhances user privacy, provides antivirus protection, or encrypts personal data, adware focuses on generating profit through advertising, making it distinct from beneficial software categories.