Chinese and US officials have discussed hacking concerns at the inaugural meeting of a joint US-China working group on cyber security.
The meeting on Monday was a prelude to an annual high-level forum between the world’s two largest economies.
The US has previously accused China of commercial cyber espionage – something China denies.
The US-China talks have also been overshadowed by allegations that the US has hacked into Chinese networks.
The claims were made by fugitive US whistleblower Edward Snowden.
The former government contractor told a Hong Kong newspaper last month that America’s National Security Agency had led more than 61,000 hacking operations worldwide, with many targets in Hong Kong and mainland China.
The two sides set up the cyber security working group in April, to speed up action to prevent hacking attacks.