Feb. 11 (Bloomberg) -- Dutch authorities began probing a hacker attack at Royal KPN NV after the phone company temporarily blocked e-mail accounts of about 2 million clients because confidential data of 539 KPN users were put online.
Opta, the Dutch telecommunications regulator, will investigate whether KPN has done enough to protect the data, Cynthia Heijne, spokeswoman for the Hague-based Opta, said today by phone. “This is standard procedure when such an event happens,” Heijne said.
KPN said Feb. 8 that a hacker broke into the server domain within the company’s information technology network and informed government authorities and the National Cyber Security Council. The company decided not to inform the public.
The company in December was put under increased supervision by Opta because of undisclosed violations, a ruling KPN has appealed. The competition regulator NMa is investigating KPN and other telephone companies separately for possible antitrust violations.
KPN has begun giving users access to their e-mail accounts. “We need additional capacity and that takes a bit of time,” Maryse Ducheine, a spokeswoman for The Hague-based KPN, said by phone today.
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