Microsoft hack fallout substantial for Dutch servers, watchdog says

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FILE PHOTO: FILE PHOTO: Silhouettes of laptop and mobile device users are seen next to a screen projection of Microsoft logo in this picture illustration

THE HAGUE (Reuters) - Dutch authorities on Tuesday said that the fallout for the Netherlands from a hack on Microsoft Corp’s Exchange was substantial, with at least 1,200 Dutch servers likely to have been affected.

"The National Cyber Security Centre observes that, as a result of vulnerabilities, data is being stolen, malware is placed, back doors are being built in and mailboxes are offered for sale on the black market," the government cyber security watchdog said, urging companies to run updates.

The Dutch watchdog's comments follow warnings from authorities in the United States and Europe about weaknesses found in Microsoft's Exchange Server software.

Britain's cyber security body, for example, last week urged organisations to install the latest Microsoft updates which have a patch that fixes the vulnerability.

Microsoft was not immediately available for comment.

(Reporting by Stephanie van den Berg; Editing by David Goodman and Jane Merriman)