Chinese intelligence could have been involved in the data breach that Reuters reported today.who have made reservations with hotels under Marriott's Starwood division,
Private investigators involved in a probe into the breach discovered hacking tools, techniques and procedures that were used in earlier cyberattacks that have been linked to Chinese hackers, according to the publication which cited anonymous sources.
These clues suggest Chinese hackers could have orchestrated a campaign with the intention of harvesting data for Beijing's espionage efforts, said the unnamed sources. They also noted that someone else could also have launched the attack because some of the same hacking tools used in the attack were previously made accessible online.
Investigators believe there may have been more than one hacking group inside the guest reservation network for Marriot's Starwood division at the same time. This could make it harder to identify the culprit, as one of the sources noted. It's been four years since the hack was launched in 2014.
The data breach at Marriott, whichsuch as credit numbers, names, mailing addresses, phone numbers, email address, passport numbers and other sensitive data at risk, is one of many that have come to light in recent days. Other breaches include the Cathay Pacific hack, which , and one at Facebook that put the data of at risk. Concerned lawmakers on Capitol Hill to safeguard sensitive consumer information just hours after Marriott announced the data breach on Friday.