SCO threatens to revoke SGI's Unix licence

Silicon Graphics is the latest technology company to be dragged into The SCO Group's dispute over the Linux operating system.

In an August 13 letter addressed to SGI's legal department and released to the media on Wednesday, SCO chief executive officer Darl McBride claims that SGI's contributions to Linux put it in breach of its 1986 Unix licensing agreement, originally signed with AT&T but subsequently transferred to SCO.

According to McBride's letter, "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, unauthorised transfer and disposition, and unauthorised use and copying."

The letter threatens to terminate SGI's Unix licence as of October 14 should SGI fail to "remedy all violations".