From the USA.gov Blog:
The Federal Trade Commission (FTC) is warning small businesses that an e-mail with a subject line “NOTIFICATION OF CONSUMER COMPLAINT” is not from the FTC. The e-mail falsely states that a complaint has been filed with the agency against their company.
The FTC advises recipients not to click on any of the links or attachments with the e-mail. Clicking on the links may install a virus or other spyware on the computer. The FTC’s advice is to delete the email.
Learn more about how to prevent malicious software (malware).