Which Country witness the massive cyber attack of russian hackers?

Estonia witnessed a massive cyber attack from Russian hackers in 2007, often considered the first instance of state-sponsored cyber warfare against an entire nation. The attack came after Estonia moved a Soviet war memorial, triggering a coordinated distributed denial-of-service (DDoS) assault that targeted government, banking, and media websites, effectively disabling the country's digital infrastructure for weeks. Bulgaria, USA, and China were not the primary targets of this specific incident.