Private investigators found hacking tools, techniques and procedures that featured in past attacks attributed to Chinese hackers, according to the report. But other parties have access to the same tools, meaning China can only be described as lead suspect, Reuters’ sources said.
“Our primary objectives in this investigation are figuring out what occurred and how we can best help our guests,” a Marriott spokesperson told Bloomberg News by email. “We have no information about the cause of this incident and we have not speculated about the identity of the attacker.”
Marriott is tallying the cost of one of the biggest corporate hacks in history, which exposed the personal data of some 500 million guests through a breach of its Starwood Hotels and Resorts reservation system from 2014. A Chinese connection might be less significant for the company than for the U.S. government, which is clashing with the rising super-power over technology and trade.
Identifying the culprit is even harder because investigators suspect multiple hacking groups may have simultaneously been inside Marriott computer networks since 2014, Reuters quoted one of the sources as saying.
The incident will seem less of a failure on Marriott’s part if the Chinese government turns out to be the perpetrator, James Lewis, director of the technology policy program at the Center for Strategic and International Studies, told Bloomberg News. “No corporation can take on a government and expect to win,” he said.
China’s foreign ministry didn’t immediately respond to faxed questions. The hotel group disclosed the attack last week.
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