CafeMumu

The Russian fast food chain Cafe Mu-Mu suffered a significant data breach in April 2020. The incident resulted in the unauthorized exposure of a customer database containing personal information of approximately 57000 users. The leaked data originated from the company online ordering system or loyalty program. The breach included sensitive identifiers such as contact details and physical addresses. This incident highlights vulnerabilities in food delivery and retail databases within the Russian market during the early stages of the pandemic shift to online services.