National Cyber and Information Security Agency (NÚKIB) warned against transfering system and user data to China (including Hong Kong and Macau) and against threat of remote management of technical assets (devices connected to Internet) carried out from territory of China. It fears impact on critical infrastructure in Czechia, as Chinese technologies (connected vehicles/electric cars, IP cameras, cloud storages, personal devices such as phones and watches, photovoltaic inverters/smart meters, medical technologies, large language models/AI) increasingly penetrate various critical sectors (transportation, energy, healthcare, public administration). Given that Chinese government, completely controlled by Communist Party of China (CPC), has tools to enforce cooperation of private companies, it could then use systems with Chinese technologies in Czechia for espionage, sabotage or hacking attacks. Agency evaluated this threat as High – threat is likely to very likely. NÚKIB already issued several warnings against products from Chinese companies in past – Huawei and ZTE in 2018, DeepSeek in July 2025