with customer information such as addresses and telephone numbers but neiman marcus, michael's craft stores have all been targeted, resulting in hundreds of billions of dollars of loss to businesses and consumers. biggest business today is malware. >> malware that was reportedly used in the neiman marcus and target breaches was sold to criminals overseas. this may just be the tip of the iceberg. >> this is truly disturbing. >> malware used to access your credit card information is sophisticated. >> we had in place multiple layers of protection including firewalls, malware, and data loss prevention tools. but the unfortunate reality is that we suffered a breach. >> neiman marcus' cruels were infiltrated with malware at a time when there was 1.1 million