CompTIA Security+ All-in-One Exam Guide (Exam SY0-301), 3rd Edition, 3rd Edition

Anti-spam

The bane of users and system administrators everywhere, spam is essentially unsolicited or undesired bulk electronic messages. While typically applied to e-mail, spam can be transmitted via text message to phones and mobile devices, as postings to Internet forums, and by other means. If you’ve ever used an e-mail account, chances are you’ve received spam.

From a productivity and security standpoint, spam costs businesses and users billions of dollars each year, and it is such a widespread problem that the U.S. Congress passed the CAN-SPAM Act of 2003 to empower the Federal Trade Commission to enforce the act and the Department of Justice to enforce criminal sanctions against spammers. The act establishes requirements for those who send ...