China's Ministry of State Security said in a post on its official WeChat account that the Tailored Access Operations unit of the National Security Agency carried out the attacks in 2009. It then monitored the servers.

There were no mentions of any post-2009 attacks, and for some reason, we only hear about Russian and Chinese attacks on US targets. Washington and cybersecurity researchers have said the Asian country has sponsored attacks against the West.

Huawei is in the news again because the telecom leader unveiled a smartphone powered by an advanced chip it designed, which Semiconductor Manufacturing International Corp. made despite years-long US sanctions intended to cut Huawei off from American technology.

The US has been "over-stretching" the concept of national security with its clampdown on Chinese enterprises, Foreign Ministry spokeswoman Mao Ning told reporters at a regular press briefing in Beijing on Wednesday. "We want to tell the US that suppression and containing of China will not stop China's development. It will only make us more resolved in our development," Mao said.