U.S. Commerce Department Secretary Gina Raimondo was among a group of senior U.S. officials whose emails were hacked earlier this year by a group Microsoft (MSFT.O) says is based in China, according to a person briefed on the matter, as fallout from the digital theft continues to spread.
Secretary of State Antony Blinken made clear to China's top diplomat Wang Yi in a meeting in Jakarta on Thursday that any action that targets the U.S. government, U.S. companies or American citizens "is of deep concern to us, and that we will take appropriate action to hold those responsible accountable," said another source, a senior State Department official.
On Tuesday, Microsoft revealed that a stealthy Chinese hacking operation had exploited a secret flaw in a piece of the company's authentication software in order to covertly break into email accounts belonging to 25 unnamed organizations.
Since the news broke, several victims in addition to the Commerce Department have acknowledged they were affected, including personnel at the State Department and U.S. House of Representatives. The intrusion activity began in May and continued for roughly one month.
The Chinese Ministry of Foreign Affairs called the accusations "disinformation" in a statement to Reuters earlier this week.
Related Story: Microsoft: Chinese Hackers Targeted Email Systems of European, U.S. Agencies
