The site reads:

"Recently we found parts of our code in almost all Microsoft(R) software. We want to bring an action against Microsoft(R) and our legal department is working on that. Parts of code found in in all Microsoft(R) products from MS-DOS(TM) 2.1 to Microsoft(R) Windows(TM) Longhorn. Currently we are checking older MS-DOS sources. It's obvious, that all while (1){ do_something; } and for (i = 0; i < 16; i++) loops came from our code."

Clearly a hack it's highly embarassing for SCO who have been subject to lots of hack attempts and DDoS attacks on their servers in recent months.

http://www.neowin.net/comments.php?id=25934&category=main