Monobank DDoS attack disrupts Ukrainian mobile banking transactions

During the evening of January 19 and early hours of January 20, 2024, Ukrainian digital banking service Monobank experienced a distributed denial-of-service attack. Customers reported difficulties signing into the application and executing banking transactions. Monobank co-founder Oleh Horokhovskyi confirmed the DDoS activity, including a second wave reportedly reaching 50 million requests. The bank mitigated the attack during the early hours of January 20, restoring normal access after a short period of transactional service degradation.