International hotel group Marriott International said the privacy of about 500 million guests may have been compromised in a cyber attack - the biggest in the last five years.
The hotelier said it was investigating "unauthorised access" of guest reservation database at its Starwood unit since 2014.
Passport and credit card information of guests have been compromised in the security breach.
The Maryland-headquartered group said in a statement it was acting on an alert received on September 8 from an internal security tool regarding attempts to access its Starwood guest reservation database.
"Marriott recently discovered that an unauthorised party had copied and encrypted information, and took steps towards removing it," it said.
"On November 19, 2018, Marriott was able to decrypt the information and determined that the contents were from the Starwood guest reservation database," it added.
The attack would the biggest since the attack on Yahoo in 2013, which exposed all of its three billion users.
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In-demand jobs and monthly salaries
- Technology expert in robotics and automation: Dh20,000 to Dh40,000
- Energy engineer: Dh25,000 to Dh30,000
- Production engineer: Dh30,000 to Dh40,000
- Data-driven supply chain management professional: Dh30,000 to Dh50,000
- HR leader: Dh40,000 to Dh60,000
- Engineering leader: Dh30,000 to Dh55,000
- Project manager: Dh55,000 to Dh65,000
- Senior reservoir engineer: Dh40,000 to Dh55,000
- Senior drilling engineer: Dh38,000 to Dh46,000
- Senior process engineer: Dh28,000 to Dh38,000
- Senior maintenance engineer: Dh22,000 to Dh34,000
- Field engineer: Dh6,500 to Dh7,500
- Field supervisor: Dh9,000 to Dh12,000
- Field operator: Dh5,000 to Dh7,000
RESULT
Arsenal 0 Chelsea 3
Chelsea: Willian (40'), Batshuayi (42', 49')
TWISTERS
Director:+Lee+Isaac+Chung
Starring:+Glen+Powell,+Daisy+Edgar-Jones,+Anthony+Ramos
Rating:+2.5/5
Kill
Director: Nikhil Nagesh Bhat
Starring: Lakshya, Tanya Maniktala, Ashish Vidyarthi, Harsh Chhaya, Raghav Juyal
Rating: 4.5/5
COMPANY PROFILE
Name: Xpanceo
Started: 2018
Founders: Roman Axelrod, Valentyn Volkov
Based: Dubai, UAE
Industry: Smart contact lenses, augmented/virtual reality
Funding: $40 million
Investor: Opportunity Venture (Asia)
Confirmed bouts (more to be added)
Cory Sandhagen v Umar Nurmagomedov
Nick Diaz v Vicente Luque
Michael Chiesa v Tony Ferguson
Deiveson Figueiredo v Marlon Vera
Mackenzie Dern v Loopy Godinez
Tickets for the August 3 Fight Night, held in partnership with the Department of Culture and Tourism Abu Dhabi, went on sale earlier this month, through www.etihadarena.ae and www.ticketmaster.ae.
