Los Angeles-based CyberDefender, the developer of Internet security software headed by Gary Guseinov, said Monday afternoon that it has scored a $5M line of credit. According to the firm, the loan comes from GR Match, which is an affiliate of Guthy-Renker LLC. The firm said the funding will go towards growing and expanding its direct marketing efforts. CyberDefender asid it will use the funds to pay GR Match itself as part of a media and marketing services agreement between the firms.