"This long-running campaign targeted the intellectual property and commercial data of a number of global managed service providers, some operating in New Zealand", GSCB director-general Andrew Hampton said.
The spy agency says it has established links between the Chinese Ministry of State Security (MSS) and a global campaign of cyber-enabled intellectual property theft - lead by a group dubbed APT 10.
Among the cyberespionage manoeuvrers detailed in the indictment is the alleged use of a phishing technique, which sent emails that appeared to be coming from legitimate email addresses but were in fact from members of "Advanced Persistent Threat 10", the China-based hacking group to which Mr Zhu and Mr Zhang purportedly belong.
The United States has charged two Chinese men it says hacked the computer systems of companies and government agencies in a dozen countries, in what Washington says was a wide-reaching state-backed campaign of cyber-espionage.
According to the indictment, the two hackers worked for a company called Huaying Haitai in association with the Chinese Ministry of State Security.
The APT10 Group also compromised computers to steal sensitive data belonging to the Navy, including personal information of more than 100,000 Navy personnel.
APT10 stole "hundreds of gigabytes" of sensitive data and information from its targets, invading their systems through the hacked MSPs, it added. They are not in custody. Prosecutors said their names were Zhu Hua and Zhang Shillong.
"It is no longer a secret that the United States conducts large-scale monitoring campaigns watching foreign governments, enterprises and individuals", it said.
The Trump administration is hard-pressing China to sign a new trade deal early next year, and its seeking leverage in some very peculiar places: The president recently suggested, for instance, that the arrest of Huawei's chief financial officer in Canada (at the U.S.'s urging) could benefit the U.S.in negotiations-a statement read by many people to suggest that the US had taken an actual hostage exclusively to gain bargaining influence.More news: Nintendo Switch is Now America's Fastest-Selling Gaming Console
Hacking targets included the U.S. Navy, NASA and companies involved aviation, space and satellite technology.
Mr Rosenstein said his department's move had been co-ordinated with United States allies in Europe and Asia to rebuff "China's economic aggression".
Chinese foreign ministry spokeswoman Hua Chunying said in a statement the indictment severely violated the basic norms of global relations and damages US-China co-operation.
The same month, the Justice Department arrested an alleged spy for China's Ministry of State Security on charges of economic espionage and attempting to steal U.S. aviation trade secrets.
Chinese intelligence officials and hackers.
The National Cyber Security Centre (NCSC) assesses with the highest level of probability that the group widely known as APT 10 is responsible for this sustained cyber campaign focused on large-scale service providers.
Britain agreed. The campaign is "one of the most serious, strategically significant, persistent and potentially damaging set of cyber intrusions against the United Kingdom and our allies that we have seen", a British security official said.
The US Justice Department on Thursday indicted two Chinese hackers tied to Beijing's security services who allegedly targeted companies and agencies in a dozen countries, which US officials said showed President Xi Jinping had not fulfilled his pledge to stop cybercrime.