D. phishing messages.
Emails asking for your Social Security number, banking information, or credit card numbers are often fraudulent attempts to steal your personal information and are known as "phishing" messages. These emails may appear to be from a legitimate source or company but are actually sent by scammers with the intention of obtaining sensitive information that can be used for identity theft or other fraudulent purposes. It is important to be cautious and never share personal information in response to unsolicited emails.