According to intelligence chief James Clapper, China is the “leading suspect” in the massive hack of a US government agency holding the personnel records of millions of Americans,.
Director of National Intelligence James Clapper is the highest-ranking US official to publicly implicate Beijing since news of the data breach emerged.
China always dismissed suggestions that it was behind the hacking.
The statement comes after three days of high-level talks in which China and the US agreed to a “code of conduct”.
At a conference in Washington DC, James Clapper said: “China remains the leading suspects.”
“The US government continues to investigate” he added, according to his office.
At the Washington talks where cyber security was a top priority, Secretary of State John Kerry said there was a need to work with China to develop a “code of conduct” on state behavior in cyberspace – Chinese representatives had agreed with these conclusions.
“It’s something that we agreed needs to be addressed and hopefully it can be addressed soon,” State Department spokesman John Kirby said on June 25.
China has said any suggestion that it was behind the hacking is “irresponsible and unscientific”.
James Clapper, director of US National Intelligence, has strongly defended government surveillance programmes after revelations of phone records being collected and internet servers being tapped.
Lt. Gen. James R. Clapper said disclosure of a secret court document on phone record collection threatened “irreversible harm”.
Revelations of an alleged programme to tap into servers of nine internet firms were “reprehensible”, he said.
Internet firms deny giving government agents access to their servers.
The director of US national intelligence issued a strong-worded statement late on Thursday, after the UK’s Guardian newspaper said a secret court order had required phone company Verizon to hand over its records to the National Security Agency (NSA) on an “ongoing daily basis”.
That report was followed by revelations in both the Washington Post and Guardian that US agencies tapped directly into the servers of nine internet firms to track people in a programme known as Prism.
The reports about Prism will raise fresh questions about how far the US government should encroach on citizens’ privacy in the interests of national security.
The NSA confirmed that it had been secretly collecting millions of phone records. But James R. Clapper said the “unauthorized disclosure… threatens potentially long-lasting and irreversible harm to our ability to identify and respond to the many threats facing our nation”.
The article omitted “key information” about the use of the records “to prevent terrorist attacks and the numerous safeguards that protect privacy and civil liberties”.
He said reports about Prism contained “numerous inaccuracies”. While admitting the government collected communications from internet firms, he said the policy only targets “non-US persons”.
Prism was reportedly developed in 2007 out of a programme of domestic surveillance without warrants that was set up by President George W. Bush after the 9/11 attacks.
Prism reportedly does not collect user data, but is able to pull out material that matches a set of search terms.
James Clapper, director of US National Intelligence, has strongly defended government surveillance programmes after revelations of phone records being collected and internet servers being tapped
James Clapper said the communications-collection programme was “designed to facilitate the acquisition of foreign intelligence information concerning non-US persons located outside the United States”.
“It cannot be used to intentionally target any US citizen, any other US person, or anyone located within the United States,” he added.
James Clapper said the programme, under Section 702 of the Foreign Intelligence Surveillance Act, was recently reauthorized by Congress after hearings and debate.
“Information collected under this program is among the most important and valuable foreign intelligence information we collect, and is used to protect our nation from a wide variety of threats,” he added.
But while US citizens were not intended to be the targets of surveillance, the Washington Post says large quantities of content from Americans are nevertheless screened in order to track or learn more about the target.
The data gathered through Prism has grown to become a major contributor to the president’s daily briefing and accounts for almost one in seven intelligence reports, it adds.
The Washington Post named the nine companies participating in the programme as Microsoft, Yahoo, Google, Facebook, PalTalk, AOL, Skype, YouTube and Apple.
Microsoft said in a statement that it only turned over customer data when given a legally binding order, and only complied with orders for specific accounts.
“If the government has a broader voluntary national security program to gather customer data we don’t participate in it,” Microsoft said.
Meanwhile, Yahoo, Apple and Facebook said they did not give the government direct access to their servers.
In a statement, Google said: “Google does not have a <<back door>> for the government to access private user data.”
On Wednesday, it emerged that the NSA was collecting the phone records of tens of millions of Americans, after the Guardian published a secret order for the Verizon phone company to hand over its records.
A senior congressman, House intelligence committee chairman Mike Rogers, told reporters that collecting Americans’ phone records was legal, authorized by Congress and had not been abused by the Obama administration.
He also said it had prevented a “significant” attack on the US “within the past few years”, but declined to offer more information.
The order requires Verizon – one of the largest phone companies in the US – to disclose to the NSA the metadata of all calls it processes, both domestic and international, in which at least one party is in the US.
Such metadata includes telephone numbers, calling card numbers, the serial numbers of phones used and the time and duration of calls. It does not include the content of a call or the callers’ addresses or financial information.