A ransomware attack by a group called AvosLocker reportedly hit Gigabyte. As a result of the attack, sensitive information including customer credit card details, NDA'd agreements with Gigabyte partners, and employee payroll information, among other details, were leaked.
https://www.notebookcheck.net/Gigabyte-hit-by-ransomware-attack-NDA-d-information-and-customer-details-leak-out-with-hackers-threatening-worse.574681.0.html