安防与智慧城市产品与服务出口2021 年
来源原文（英文，未经改写）
Top10VPN mapping of 6.3 million Hikvision/Dahua IP-camera networks across 191 countries outside China (Shodan scans, Sept 2021) found Vietnam has the largest share of any country outside China (13%, ahead of the US at 11%), with Ho Chi Minh City ranked first and Hanoi second among world cities. Hikvision devices carry facial-recognition, licence-plate and behaviour-analysis capabilities.