Official at Avnon Group says sale to Budapest, which has been accused of using Israeli spyware against journalists in the past, was approved by the Defense Ministry
Incident comes ahead of commemoration events honoring founder of the Islamic Republic; attack also affects websites defaced with graphics criticizing the 'anti-human Khomeini'
Kyiv says millions would have been left without electricity had attack been successful; officials say operation was weeks in the making and launched ahead of Moscow's invasion
Cyber-assaults on Ukrainian government, military sectors up almost 200% as 'hacktivists' and researchers help wage war online, say Israeli cyber specialists
Cybersecurity researchers say attackers infected hundreds of computers with destructive malware; move was expected as accompaniment to Russian military incursion
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