BEIJING—A Chinese internet security firm that researchers say is behind sophisticated attacks on Western energy and defense companies disbanded this month amid U.S. accusations that some of its shareholders were involved in hacking and theft of trade secrets.
A U.S. Department of Justice indictment unsealed Monday alleged that three Chinese nationals hacked into the emails of a Moody’s Analytics economist and stole confidential business information from German engineering giant Siemens AG .
Filings with a government-run credit database show that Boyusec was deregistered Nov. 11.
Boyusec’s listed phone number rang unanswered, and an email to a company address didn’t immediately elicit a response.
U.S.-based cybersecurity firms FireEye and Recorded Future link Boyusec to a Chinese hacking group, known as APT3 or Gothic Panda, that has targeted Western businesses, governments and defense companies by using previously undiscovered security holes in software called zero-day exploits.
“APT3 is a capable operator, carrying out cyber-espionage activity against a wide range of targets, though their activity has decreased in recent years,” said Bryce Boland, Asia Pacific chief technology officer at FireEye.