Suspected Russian hackers were caught exploiting a recently patched Windows vulnerability as a zero-day in ongoing attacks targeting Ukrainian entities.
A hybrid espionage/influence campaign conducted by the Russian threat group 'UNC5812' has been uncovered, targeting Ukrainian military recruits with Windows and Android malware.
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Amazon has seized domains used by the Russian APT29 hacking group in targeted attacks against government and military organizations to steal Windows credentials and data using malicious Remote Desktop Protocol connection files.
Ukraine's cyber police have arrested a 28-year-old man who operated a massive virtual private network (VPN) service, allowing people from within the country to access the Russian internet (Runet).
A group of pro-Ukrainian hacktivists has claimed responsibility for the September breach of Russian security company Doctor Web (Dr.Web).
Ukraine's National Coordination Centre for Cybersecurity (NCCC) has restricted the use of the Telegram messaging app within government agencies, military units, and critical infrastructure, citing national security concerns.
Attackers impersonating the Security Service of Ukraine (SSU) have used malicious spam emails to target and compromise systems belonging to the country's government agencies.
Russian-linked malware was used in a January 2024 cyberattack to cut off the heating of over 600 apartment buildings in Lviv, Ukraine, for two days during sub-zero temperatures.
The U.S. indicted Russian national Amin Timovich Stigal for his alleged role in cyberattacks targeting Ukrainian government computer networks in an operation from the Russian foreign military intelligence agency (GRU) prior to invading the country.
The Ukraine cyber police have arrested a 28-year-old Russian man in Kyiv for working with Conti and LockBit ransomware operations to make their malware undetectable by antivirus software and conducting at least one attack himself.
The Computer Emergency Response Team of Ukraine (CERT-UA) reports about a new campaign dubbed "SickSync," launched by the UAC-0020 (Vermin) hacking group in attacks on the Ukrainian defense forces.
Hackers are utilizing code from a Python clone of Microsoft's venerable Minesweeper game to hide malicious scripts in attacks on European and US financial organizations.
Russian hacker group Sandworm aimed to disrupt operations at around 20 critical infrastructure facilities in Ukraine, according to a report from the Ukrainian Computer Emergency Response Team (CERT-UA).
The Ukrainian cyber police, in collaboration with investigators from the national police (ГУНП), have arrested three individuals who are accused of hijacking over 100 million emails and Instagram accounts worldwide.
The Main Intelligence Directorate (GUR) of Ukraine's Ministry of Defense claims that it breached the servers of the Russian Ministry of Defense (Minoborony) and stole sensitive documents.
A hacking group tracked as 'UAC-0184' was observed utilizing steganographic image files to deliver the Remcos remote access trojan (RAT) onto the systems of a Ukrainian entity operating in Finland.
Ukraine's cyber police arrested a 31-year-old for running a cybercrime operation that gained access to bank accounts of American and Canadian users and sold them on the dark web.
Ukrainian national Vyacheslav Igorevich Penchukov, one of the heads of the notorious JabberZeus cybercrime gang, has pleaded guilty to charges related to his leadership roles in the Zeus and IcedID malware groups.
The Computer Emergency Response Team in Ukraine (CERT-UA) is warning about a PurpleFox malware campaign that has infected at least 2,000 computers in the country.
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.