The US Department of Justice said on Wednesday the United States and China have come to an agreement on a protocol for assitance in tackling cyber crime.
The deal was made during talks in Washington between officials including US Attorney General Loretta Lynch, US Department of Homeland Security Secretary Jeh Johnson and Chinese Public Security Minister Guo Shengkun.
China and the US will implement "tabletop exercises" in the spring with a number of scenarios that are shaped to enhance understanding of the expectations for response and cooperation.
China's Ministry of Public Security has said both China and US have agreed on keeping an open discussion on the issue of cyber crime.
The ministry also said the agreement would have a "major impact" in putting the security measures into practice.
US media wrote on Wednesday that several people have been arrested due hacking data on more than 22 million federal workers.
However, people close to US officials said they believed it was a government-sponsored intrusion, while China rejected the allegations, saying the hacking was criminal, not state-sponsored.