This CIP [Critical Infrastructure Protection] Bulletin provides information on: "Social networking sites have become very popular avenues for people to communicate with family, friends and colleagues from around the corner or across the globe. While there can be benefits from the collaborative, distributed approaches promoted by responsible use of social networking sites, there are information security and privacy concerns. The volume and accessibility of personal information available on social networking sites have attracted malicious people who seek to exploit this information. The same technologies that invite user participation also make the sites easier to infect with malware that can shut down an organization's networks, or keystroke loggers that can steal credentials. Common social networking risks such as spear phishing, social engineering, spoofing, and web application attacks attempt to steal a person's identity. Such attacks are often successful due to the assumption of being in a trusting environment social networks create. Security and privacy related to social networking sites are fundamentally behavioral issues, not technology issues. The more information a person posts, the more information becomes available for a potential compromise by those with malicious intentions. People who provide private, sensitive or confidential information about themselves or other people, whether wittingly or unwittingly, pose a higher risk to themselves and others. Information such as a person's social security number, street address, phone number, financial information, or confidential business information should not be published online. Similarly, posting photos, videos or audio files could lead to an organization's breach of confidentiality or an individual's breach of privacy."
CIP Bulletin 2-10
U.S. Fire Administration: http://www.usfa.dhs.gov/