Here's how using cameras of Chinese surveillance firm, a threat to national security | Ghanti Bajao

Hikvision is one of the world's largest manufacturers of video surveillance products and is central to China's ambitions to be the top global exporter of surveillance systems.  

The company has said that its products enable their clients to track people around the country by their facial features, body characteristics or gait, or to monitor activity considered unusual by officials, such as people suddenly running or crowds gathering.