DoubleClick quiet over DoS attack

Digital marketing and advertising company DoubleClick is staying tight-lipped about the denial of service (DoS) attack that hobbled its online ad-serving operation for four hours overnight.Jon Moffat, director of DoubleClick's Asia Pacific customer support sent a bulletin to the company's clients late today to update them on the incident.

Digital marketing and advertising company DoubleClick is staying tight-lipped about the denial of service (DoS) attack that hobbled its online ad-serving operation for four hours overnight.

Jon Moffat, director of DoubleClick's Asia Pacific customer support sent a bulletin to the company's clients late today to update them on the incident.

Moffat said the performance of the company's ad-servers were beginning to return to normal.

However his bulletin left few clues as to the reason for the attack.

"We are investigating the cause of the attack, which was similar in form to the attacks on others in our industry," said Moffat.

It's unclear to which other incidents Moffat referred. ZDNet Australia today contacted DoubleClick's offices in Hong Kong and Australia for comment on the bulletin but the company declined the opportunity to be interviewed about the matter.

Search portal companies Google and Yahoo were reportedly targets of virus-related DoS attacks on Monday.

Moffat said DoubleClick would take steps to "resolve the situation permanently".

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