The Chinese supplier of ip cameras and surveillance products confirmed that vulnerabilities in its networks exposed clients to cyberattacks from overseas. Confirmation came after public security officials in Jiangsu issued urgent security alerts to its departments.

Hikvision, based in Hangzhou, confirmed on its microblog that some of its products were at risk of attack from abroad, backing up a statement by the Jiangsu Provincial Public Security Bureau on Friday.

Hikvision has contracts with mainland public security agencies as well as international conferences such as November’s Asia-Pacific Economic Cooperation meeting in Beijing and the Boao Forum in Hainan .

A copy of an announcement labelled “urgent” by the Jiangsu provincial public security bureau circulated widely online on Friday, instructing all departments to scrutinise any Hikvision products they were using.

The notice came after the provincial Internet Emergency Coordination Centre detected “severe security risks” in the products, claiming that some of them “had already been controlled by [devices with] foreign internet protocol addresses”.

Multiple sources from the bureau confirmed to online news outlet on Friday that the document circulating online was authentic.

Hikvision issued a “clarification” early on Saturday confirming that the internet security watchdog had detected online cyber attacks against their products.

Clients had exposed themselves to the attacks because they had used weak passwords or failed to reset default passwords, it said.

The company said that in theory, any devices linked to the internet were at risk of hacking attacks.

“Once hackers break the password, they can introduce a computer virus to the device and turn it into a source of infection.”

The company said yesterday it would send technicians to help police in Jiangsu inspect all of its products and make any updates that were necessary.