Caesars Entertainment, Inc.

Item 8.01 Other Events. Caesars Entertainment, Inc. (the “Company,” “we,” or “our”) recently identified suspicious activity in its information technology network resulting from a social engineering attack on an outsourced IT support vendor used by the Company. Our customer-facing operations, including our physical properties and our online and mobile gaming applications, have not been impacted by this incident and continue without disruption. After detecting the suspicious activity, we quickly activated our incident response protocols and implemented a series of containment and remediation measures to reinforce the security of our information technology network. We also launched an investigation, engaged leading cybersecurity firms to assist, and notified law enforcement and state gaming regulators. As a result of our investigation, on September 7, 2023, we determined that the unauthorized actor acquired a copy of, among other data, our loyalty program database, which includes driver’s license numbers and/or social security numbers for a significant number of members in the database. We are still investigating the extent of any additional personal or otherwise sensitive information contained in the files acquired by the unauthorized actor. We have no evidence to date that any member passwords/PINs, bank account information, or payment card information (PCI) were acquired by the unauthorized actor. We have taken steps to ensure that the stolen data is deleted by the unauthorized actor, although we cannot guarantee this result. We are monitoring the web and have not seen any evidence that the data has been further shared, published, or otherwise misused. Nonetheless, out of an abundance of caution, we are offering credit monitoring and identity theft protection services t