Hyatt Hotels has suffered a second card data breach in two years. In the first breach, hackers had gained access to credit card systems at 250 properties in 50 different countries. This time, the breach appears to have impacted 41 properties across 11 countries. Krebs on Security reports: Hyatt said its cyber security team discovered signs of unauthorized access to payment card information from cards manually entered or swiped at the front desk of certain Hyatt-managed locations between March 18, 2017 and July 2, 2017. "Upon discovery, we launched a comprehensive investigation to understand what happened and how this occurred, which included engaging leading third-party experts, payment card networks and authorities," the company said in a statement. "Hyatt's layers of defense and other cybersecurity measures helped to identify and resolve the issue. While this incident affects a small percentage of total payment cards used at the affected hotels during the at-risk dates." The hotel chain said the incident affected payment card information -- cardholder name, card number, expiration date and internal verification code -- from cards manually entered or swiped at the front desk of certain Hyatt-managed locations. It added there is no indication that any other information was involved.