"China firmly opposes all forms of cyberattacks and, if there is any proof, it should be presented to the Chinese side, and the relevant authorities will investigate the case in accordance with the law… China strongly opposes any groundless accusations on cybersecurity issues," Geng said at a briefing.
READ MORE: Here We Go Again: Giant Marriott Hotels Hack Exposes Data of 500 Million
The comment was made after in November Marriott International, the world's largest hotel chain, reported about a breach of its Starwood reservation system, which resulted in the theft of data of up to 500 million guests. Information on 327 million guests included names, postal and email addresses, phone numbers, passport details, birth dates, gender, and check-in records.
According to various media reports, hackers left traces suggesting that they were involved in intelligence gathering for the Chinese government.