- NotPetya Attack (June 2017)
Top 10 Biggest Cyberattacks on Ukraine Type: Wiper malware disguised as ransomware
Impact: Crippled government systems, banks, media, and infrastructure; spread globally
Estimated Damage: $10 billion globally
Attribution: Russian military intelligence (GRU) - BlackEnergy Attack on Power Grid (December 2015)
Type: Malware
Impact: First known successful cyberattack to cause a blackout (230,000 people affected)
Attribution: Russian APT group Sandworm - Industroyer / CrashOverride (December 2016)
Type: ICS-focused malware
Impact: Targeted Ukrainian power grid again; caused an outage in Kyiv
Attribution: Sandworm (GRU) - HermeticWiper Attack (February 2022)
Type: Data-wiping malware
Impact: Disabled hundreds of machines in government and financial institutions
Attribution: Russia (APT groups) - WhisperGate (January 2022)
Type: Wiper malware disguised as ransomware
Impact: Defaced government websites; deleted data
Attribution: Suspected Russian actors - Telecom and Internet Disruption (2022-present)
Type: DDoS, infrastructure sabotage
Impact: Knocked out internet, especially in occupied areas
Attribution: Ongoing, linked to military operations - Operation Armageddon (Ongoing since 2013)
Type: Espionage campaign
Impact: Targeted Ukrainian government and military for intelligence
Attribution: Russian-linked hacker group Gamaredon - DDoS Attacks on Ukrainian Banks and Defense (February 2022)
Type: Distributed Denial-of-Service
Impact: Took out government and bank websites
Attribution: Russian state actors - Prykarpattyaoblenergo Attack (2015)
Type: BlackEnergy
Impact: Part of the coordinated attack that caused blackouts
Attribution: Sandworm - Facebook & Social Media Disinformation Campaigns (2014-ongoing)
Type: Cyber-psychological warfare
Impact: Undermined public trust, spread fake news
Attribution: Russian state-backed actors and troll farms
