Mosh requires OpenSSH to run so no matter what, using Mosh is <i>ALWAYS</i> less safe than OpenSSH alone since all it does is add functionality on top.<p>Now, I wrote a 3DES-telnet tool back in 1996 and it has zero security vulnerability. That&#x27;s 20 years. Safe as hell! Yeah exactly. Everyone uses OpenSSH. Very few use Mosh. Invalid comparison.