âQuite shockedâ: Defence give secrets to China Department of Defence secrets have now been signed over to a China-owned data storage centre despite security fears. Politics by Charles Miranda Premium Content Subscriber only Defence has signed over the storage of its secrets to a Chinese-owned company in defiance of apparent orders from the federal government that the millions of sensitive real-time files be urgently moved out. For years, data storage firm Global Switch has been tasked with storing the nation's military secrets at facilities in Ultimo in inner Sydney but that was to change when in 2016 the London-based parent company Aldersgate Investments sold a 49 per cent stake to a Chinese data tech consortium.