Position, Reiterates Support for Linux" where they publicly challenged SCO's assertions that Unix code had been copied into Linux, or that SCO owned the Unix copyrights. On June 6, 2003, SCO held a press conference in which it revealed a second amendment to the "asset purchase agreement between Novell and Santa Cruz Operation". SCO claimed this amendment supported its claim to the Unix copyrights. This amendment did not change the included assets list (which still did not list copyrights), but instead amended the excluded assets list to continue to exclude copyrights, except those "required" by SCO. In response, Novell issued a press release in which it stated: While SCO publicly claimed victory, behind the scenes SCO and Novell traded a series of heated letters. In a flurry of private letters, Novell continued its claim that they still were the legal owner of the Unix copyrights, and exercised a series of rights under the APA over the following months (including issuing waivers of SCO's claims against certain parties, auditing SCO's collection of Unix SVRX royalties, demanding access to all versions of Unix code under SCO's control per the APA's related Technology License Agreement and issuing a cease and desist against SCO for seeking information from former Novell executives). The relationship between the companies quickly deteriorated. On October 14, 2003, Novell registered several key Unix copyrights with the United States Copyright Office and submitted declarations for recordation against SCO's own Unix copyright registrations. These declarations stated: "The SCO Group, Inc. ... has failed ... to demonstrate that any of the Unix copyrights owned by Novell are required for SCO to exercise its rights..." and that "Novell hereby declares that it retains all or substantially all of the ownership of the copyrights in Unix, including [SCO's] U.S. Copyright Registration referenced above". After the registrations became public knowledge, Novell issued a press release on December 22, 2003 stating: On January 13, 2004, Novell announced that it was indemnifying Linux users, agreeing to protect them from lawsuits by third parties, like SCO, on the basis of violating the copyrights claimed by Novell. The same day, Novell released over 30 letters that SCO and Novell had exchanged in the previous months. SCO immediately responded with a press release reiterating its earlier claim, and announcing that it was preparing to file a lawsuit against Novell. The lawsuit Utah state court SCO filed a slander of title lawsuit