If you use OpenSSH tools, you are enhancing the security of your machine. All communications using OpenSSH tools, including passwords, are encrypted. Telnet and ftp use plain text passwords and send all information unencrypted. The information can be intercepted, the passwords can be retrieved, and your system could be compromised by an unauthorized person logging in to your system using one of the intercepted passwords. The OpenSSH set of utilities should be used whenever possible to avoid these security problems.
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