SCO is denying claims that a former employee has allegedly sent an e-mail that indicated the company's investigation found that Linux does not infringe on SCO's intellectual property. Basically, it’s no case for SCO - or at least that's the rumour. The alleged e-mail from Michael Davidson details a code comparison that was made over the period of several months between the (at that time) current version of Linux and versions of AT&T's Unix source code. SCO is suing IBM for allegedly using SCO's Unix code in the Linux kernel. The core of SCO's case rests on the premise that IBM misappropriated licensed Unix System V source code found in AIX and Dynix. If this leaked e-mail is indeed true, then SCO has very little of a case.

"At the end, we had found absolutely *nothing*. ie no evidence of any copyright infringement whatsoever," Davidson wrote in his e-mail. "There is, indeed, a lot of code that is common between UNIX and Linux (all of the X Windows system, for example) but invariably it turned out that the common code was something that both we (SCO) and the Linux community had obtained (legitimately) from some third party."