This article is from the SSH - Secure Shell FAQ, by Thomas Koenig Thomas.Koenig@ciw.uni-karlsruhe.de with numerous contributions by others.
Ssh will not help you with anything that compromises your host's
security in some other way. Once an attacker has gained root access to
a machine, he can then subvert ssh, too.
If somebody malevolent has access to your home directory, then
security is nonexistent. This is very much the case if your home
directory is exported via NFS.
 
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