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Bleeping Computer
A group of pro-Ukrainian hacktivists has claimed responsibility for the September breach of Russian security company Doctor Web (Dr.Web). [...]
The Hacker News
Ukraine has claimed responsibility for a cyber attack that targeted Russia state media company VGTRK and disrupted its operations, according to reports from Bloomberg and Reuters. The incident took place on the night of October 7, VGTRK confirmed, describing it as an "unprecedented hacker attack." However, it said "no significant damage" was caused and that everything was working normally
Graham Cluley
An app which purported to launch distributed denial-of-service (DDoS) attacks against the internet infrastructure of Russia, was in reality secretly installing malware on to the devices of pro-Ukrainian activists. Read more in my article on the Hot for Security blog.
Bleeping Computer
Google's Threat Analysis Group (TAG), whose primary goal is to defend Google users from state-sponsored attacks, said today that Russian-backed threat groups are still focusing their attacks on Ukrainian organizations. [...]
Bleeping Computer
Google's Threat Analysis Group (TAG), whose primary goal is to defend Google users from state-sponsored attacks, said today that Russian-backed threat groups are still focusing their attacks on Ukrainian organizations. [...]
The Hacker News
A pro-Ukrainian hacktivist group called PhantomCore has been attributed to attacks actively targeting servers running TrueConf video conferencing software in Russia since September 2025. That's according to a report published by Positive Technologies, which found the threat actors to be leveraging an exploit chain comprising three vulnerabilities to execute commands remotely on susceptible
The Hacker News
A pro-Ukrainian group called Bearlyfy has been attributed to more than 70 cyber attacks targeting Russian companies since it first surfaced in the threat landscape in January 2025, with recent attacks leveraging a custom Windows ransomware strain codenamed GenieLocker. "Bearlyfy (also known as Labubu) operates as a dual-purpose group aimed at inflicting maximum damage upon Russian businesses;
Bleeping Computer
The Main Intelligence Directorate of Ukraine's Ministry of Defense claims that pro-Ukrainian hacktivists breached the Russian Center for Space Hydrometeorology, aka "planeta" (планета), and wiped 2 petabytes of data. [...]
Dark Reading
Russia's NoName057(16) group offers incentives and prizes via Telegram channel for "heroes" to mount attacks against targets within Ukraine and pro-Ukrainian countries.
Bleeping Computer
Hackers continue to target Russia with cyberattacks, defacing Russian TV to show pro-Ukrainian messages and taking down the RuTube video streaming site. [...]