Attachment phishing emails typically request what from the recipient?

Attachment phishing emails primarily seek to deceive the recipient into opening a malicious attachment. This technique exploits the common practice of sharing files through email to install malware or steal personal information once the attachment is accessed. Malicious attachments can take various forms, including documents, spreadsheets, or executables that, when opened, may execute harmful processes on the user's device without their knowledge.

The other options may represent legitimate email activities but do not specifically encompass the primary strategy of attachment phishing. Sharing opinions or filling out surveys typically involves user engagement with minimal risk, while clicking on a web link might lead to a form of phishing as well, but it does not highlight the unique risk associated with attachments, which can directly compromise a device's security.