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The site has been down since 4:20 a.m. Mountain Time (11:20 am GMT) , when it experienced "a large scale distributed denial of service (DDoS) attack," SCO said in a statement. The attack affected the company's web site, e-mail, intranet and customer support operations. SCO said it is working with its Internet Service Provider to restore the site to operation.
SCO is working with law enforcement officials and its ISP to gather information to help identify the origin of these attacks. The company said the DDoS, known as a syn attack, used "several thousand servers (that) were compromised by an unknown person to overload SCO's Web site with illegitimate Web site requests."
The SCO site was offline for more than three days in August, and cited a DDoS for that outage as well.