Nagano Gov. Yasuo Tanaka said Thursday that the online national resident registry system is vulnerable to attacks. His accusation came after revelations that a computer security expert had hacked into the system in a prefecture-backed experiment.
Tanaka told the prefectural assembly that, in light of the results, "It is necessary for us to map out measures to fully protect personal information."
The governor said the prefecture will evaluate the results of the experiment with third-party experts before releasing details.
The experiment was carried out in three municipalities with the tacit approval of the central government.