Dutch high-tech companies are unknowingly selling their technologies to companies set up by the Russian secret service, the head of the Dutch military secret service has told the Financieele Dagblad.The products range from microchips to industrial paint and rubber for the tyres of military vehicles, Swillens said.‘This has been happening since the annexation of Crimea, but with the war in Ukraine it is increasing significantly,’ Swillens said and he urged the tech sector to conduct more thorough research into its customers.Your financial support has helped us to expand our coverage of the coronavirus crisis into the evenings and weekends and make sure you are kept up to date with the latest developments.DutchNews.nl has been free for 14 years, but without the financial backing of our readers, we would not be able to provide you with fair and accurate news and features about all things Dutch."