One of the major problems of the Telnet communication protocol is its scarce security. Any communication can easily be intercepted and read due to its lack of encryption, so to achieve secure connections through Telnet, we can use SecureCRT.

The terminal of SecureCRT includes support for SSH1 and SSH2, furthermore, it supports passwords, public key by means of RSA, DSA, and X.509, Kerberos V5, interactive keyboard when it connects to SSH2 server, moreover it allows the password encryption of the public key, and the authentication by means of TIS.

Furthermore, it supports data transfers by means of SFTP from the command line and a vast amount of really powerful encryption systems that will make sure that even if someone is capable of intercepting your communication, they won't be able to decipher it.

SecureCRT supports the emulation of VT100, VT102, VT220, ANSI, SCO ANSI, Wyse 50/60, Xterm, and Linux terminals.

Among the features that are worth highlighting when it comes to transferring data securely, we'll find the possibility to redirect the usual ports, like the ones used by the POP3, IMAP4, HTTP and SMTP protocols, which will greatly increase our communication's security.