“The National Institute of Standards and Technology (NIST) has released an update to a document that helps computer administrators maintain the security of information traveling across their networks. The document, NIST Special Publication 800-52 Revision 1: Guidelines for the Selection, Configuration, and Use of Transport Layer Security (TLS) Implementations, updates the original SP 800-52, released in 2005. Sensitive data—from credit card numbers to patient health information to social networking details—need protection when transmitted across an insecure network, so administrators employ protocols that reduce the risk of that data being intercepted and used maliciously. TLS, a standard specified by the Internet Engineering Task Force, defines the method by which client and server computers establish a secure connection with one another to protect data that is passed back and forth. TLS is used by a wide variety of everyday applications, including email, secure web browsing, instant messaging and voice-over-IP (VOIP).”