Microsoft Patents Sudo's Behaviour

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http://www.tuxopia.net – Groklaw is running a story about a patent which Micrsoft has filed which seems to portray the behaviour of sudo, gksu, kdesu and other similar tools for privilige escalation. The paten in question, Patent Number 7617530., filed April 22, 2005 and granted on the November 10th claims the concept of sudo to be their "invention". (IT news)