As reported by Censor.NET citing Dutchnews, he said on air of Een Vandaag current affairs TV show that Russia in particular was trying to get its hands on confidential government documents.
"I consider this to be a danger to our democracy. The danger is that they will be able to influence how our parliament works or how our government takes decisions," he said.
"Companies are also a major target. Here the danger is that they steal company secrets and can damage the Dutch economy," Bertholee said.
"However, there is no point in taking action against Russia and other countries because they will deny the accusations," he said.
Earlier this week, home affairs minister Ronald Plasterk said that the all the votes in next months general election will be counted by hand because the computer counting system is vulnerable to hackers.
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