It’s not clear how many individuals are affected by the incident. Hotel and casino giant Caesars Entertainment said Thursday that hackers stole a huge trove of customer data in a recent cyberattack, confirming recent media reports.Ĭaesars said in an 8-K notice with federal regulators filed before markets opened on Thursday that hackers stole a copy of the company’s loyalty program database, which includes driver license numbers and Social Security numbers for a “significant number of members.” Public companies are obligated to file 8-K notices when an event or incident has a material effect on their businesses.Ĭaesars said that other data was stolen in the cyberattack, but did not say what.