FRAMINGHAM (10/03/2003) - Silicon Graphics Inc. is the latest technology company to be dragged into The SCO Group's dispute over the Linux operating system. In an Aug. 13 letter addressed to SGI's legal department and released to the media this week, SCO CEO Darl McBride said SGI's contributions to Linux put it in breach of its 1986 Unix licensing agreement, originally signed with AT&T Corp. but subsequently transferred to SCO. "SGI flagrantly permitted the copying and use of our proprietary information without any knowledge of the identities of the recipients" and "subjected our source code to unrestricted disclosure, unauthorized transfer and disposition, and unauthorized use and copying," McBride said in the letter. The letter threatens to terminate SGI's Unix license as of Oct. 14 should SGI fail to "remedy all violations." SGI responded to SCO's letter in early September with a letter saying SCO's allegations were without merit, SGI spokeswoman Marty Coleman says.