If you stayed in Hyatt Singapore between 12th August to 13th August 2015, your credit card details may have been affected. You should have already received a mail from Hyatt, or you may contact them for more information.
Check out what they say below.
The investigation identified signs of unauthorized access to payment card data from cards used onsite at certain Hyatt-managed locations, primarily at restaurants, between August 13, 2015 and December 8, 2015. A small percentage of the at-risk cards were used at spas, golf shops, parking, and a limited number of front desks, or provided to a sales office during this time period. The at-risk window for a limited number of locations began on or shortly after July 30, 2015.
The malware was designed to collect payment card data – cardholder name, card number, expiration date and internal verification code – from cards used onsite as the data was being routed through affected payment processing systems. There is no indication that other customer information was affected.
The list of affected Hyatt locations and respective at-risk dates is available here. Additionally, for at-risk transactions where a cardholder’s name was affected, we are in the process of mailing letters to customers for whom we have a mailing address and sending emails to customers for whom we only have an email address.