Therefore, privacy cannot be assured without encryption, because there is no embedded security in the communications lines. 21.7.1 Terminal Emulation. In terminal emulation, the host thinks the microcomputer is a terminal. File and data transfers can occur at high rates, often without verification procedures. Data downloads are usually controlled by the host, but once the data has entered the microcomputer, there is the potential for loss of data credibility.
Communications software can store phone numbers, logon routines, and passwords.
This leaves the security of the host dependent upon the security of the microcomputer. Host as a Server. When microcomputers are connected to a resource server you have all the vulnerabilities of a network plus the server's vulnerabilities. Use of a secure phone may be required and your request will be followed with written guidance. 21.9 Supplemental Documentation.