For over 4 months, both parties waited for a response of the judge. Finally, Red Hat filed a motion to supplement the record with additional information. The additional information contained two letters sent by The SCO Group to Lehman Brothers, a Red Hat customer. In the first letter SCO once again claims ownership of Unix and that certain portions of Linux infringe on its Unix copyrights. In the second letter SCO threatened legal action if Lehman Brothers did not remedy the infringement. A letter sent by Lehman Brothers' counsel instructed SCO to take this matter up with Red Hat, their supplier of Linux products.