Sensitive data that has been sent in the clear. You can avoid either of these two possible attacks by using kerberized, encrypted Telnet whenever possible. It is important to remember that both client and server must have Kerberos and encryption capabilities. Security breaches have been posed from within and outside the Institute. These tools let snoopers capture userids, passwords, and other data transmitted across a network.
Snoopers can then gain unauthorized access to accounts and files on the Internet.
If you use Telnet to log onto remote hosts, you should be concerned about protecting your username, password, and sensitive data. This proves to a remote host that you really are you, without sending your password.