7 that may have exposed driver’s license and Social Security numbers of loyalty rewards members.
The Reno-based publicly traded company told the federal Securities and Exchange Commission that it could not guarantee that personal information about tens of millions of customers was secure following a data breach Sept. LAS VEGAS - Casino company Caesars Entertainment on Thursday joined Las Vegas gambling rival MGM Resorts International in reporting that it was hit by a cyberattack, but added in a report to federal regulators that its casino and online operations were not disrupted.