A major cyber assault on Monobank was reportedly repelled, according to a post circulating on a messaging platform. The claim notes that the bank’s defenses held firm and that customer operations were safeguarded during the incident.
Another report indicated that a distributed denial-of-service attack affected Monobank, coinciding with a temporary halt to transactions while security measures were applied and resilience tested.
In Ukraine, the energy sector faced a significant disruption when officials confirmed that roughly 2 million people lost electricity due to a system malfunction that disrupted power delivery.
Late on May 30, an incident involving the power system operator triggered immediate outages across multiple locations, prompting rapid response from operators and emergency services.
Outages were observed in Kyiv and several other regions, including Vinnytsia, Dnepropetrovsk, Kyiv city, Kirovohrad, and Mykolaiv, with disruptions also impacting nearby areas and supply routes.
Residents in Odessa, Poltava, Kharkiv, Khmelnytskyi, and Cherkasy regions, along with the Kyiv-controlled segment of the Zaporizhzhia region, experienced power interruptions as the situation unfolded and restoration work commenced.
Officials described the incident as the largest power-distribution failure since February of the previous year, underscoring the challenges facing critical infrastructure during periods of increased demand and potential cyber risk.
Earlier reports noted that Ukraine’s mobile communications provider Kyivstar sustained substantial outages from an extensive cyber attack, highlighting the vulnerability of essential services in the region and triggering discussions about resilience and recovery planning.
Across sectors, authorities emphasized that both the financial and energy networks are linked in their reliance on secure, robust systems. Cyber defense efforts continue to be a priority as investigations proceed and recovery actions are scaled to ensure continuity of service for consumers and businesses alike.