There was a sudden hardware failure that lay behind the activity, which since last Sunday has ruled out a Tax site and e-services.

According to the Swedish Tax agency's it director Jan Zetterdahl was the new hard drives without warning stopped working.

"this is new equipment that should not be broken and it is obviously something that we are going to examine everything because we got up our system again," he says to Computer Sweden.

According to Tax, there are no indications, however, that it should have been external influences that caused the crash.

Since the error was discovered Sta has the it staff worked to move large amounts of data from the old drives to the new, which delayed the process of getting up the site again.

– It is very much data that we have to move and verify, which has made the process has taken longer than we thought, " says Jan Zetterdahl.

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