Spyware can be disguised in several ways within email marketing campaigns:
Attachments: Malicious software can be hidden in email attachments such as PDFs, Word documents, or ZIP files. Links: Clicking on a hyperlink in an email can lead to a website that automatically installs spyware on the user's device. Embedded Code: Spyware can be embedded in the HTML code of an email, executing when the email is opened.