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A previously undocumented threat actor dubbed GREYVIBE has been attributed to ongoing and persistent attacks targeting Ukraine and Ukraine-related entities since at least August 2025
A likely Russian threat cluster tracked as GreyVibe has been targeting Ukrainian entities with AI-generated lures and a rich set of custom malware tools. [...]
Also, Active Exploits Hit SolarWinds, Ivanti as APT28 Targets EU, UkraineThis week, Italy blocked Russian cyberattacks targeting the Olympics. Flaws in SolarWinds, Ivanti and Microsoft Office. Russia's APT28 ramped up attacks in Ukraine, supply chain attacks, regulators probed major breaches and a U.S. judge sentenced the operator of a darkweb drug marketplace.
Also, Active Exploits Hit SolarWinds, Ivanti as APT28 Targets EU, UkraineThis week, Italy blocked Russian cyberattacks targeting the Olympics. Flaws in SolarWinds, Ivanti and Microsoft Office. Russia's APT28 ramped up attacks in Ukraine, supply chain attacks, regulators probed major breaches and a U.S. judge sentenced the operator of a darkweb drug marketplace.
U.S. prosecutors have charged a Ukrainian national for her role in cyberattacks targeting critical infrastructure worldwide, including U.S. water systems, election systems, and nuclear facilities, on behalf of Russian state-backed hacktivist groups. [...]
Ukraine first to deploy open source security platform to isolate incidents, stop lateral movement Feature It was a sunny morning in late April when a massive power outage suddenly rippled across Spain, Portugal, and parts of southwestern France, leaving tens of millions of people without electricity for hours.…
Numerous Attacks Designed and Timed 'to Amplify the Impact of Kinetic Strikes'Russia in the first half of this year markedly increased the tempo of its cyberattacks targeting Ukraine, with defenders cataloging 3,000 cybersecurity incidents, largely targeting the military, government, local authorities and energy sector, often timed to amplify the impact of kinetic attacks.
In May 2025, the European Union levied financial sanctions on the owners of Stark Industries Solutions Ltd., a bulletproof hosting provider that materialized two weeks before Russia invaded Ukraine and quickly became a top source of Kremlin-linked cyberattacks and disinformation campaigns. But new data shows those sanctions have done little to stop Stark from simply rebranding and transferring their assets to other corporate entities controlled by its original hosting providers.
While Ukraine remains Russia's major target for cyberattacks, TAG-110 is part of a strategy to preserve "a post-Soviet sphere of influence" by embedding itself in other countries' infrastructures.
Russia's cyberattacks on Ukraine have increased dramatically, targeting the country's government and defense infrastructure.
The Computer Emergency Response Team of Ukraine (CERT-UA) has revealed that no less than three cyber attacks were recorded against state administration bodies and critical infrastructure facilities in the country with an aim to steal sensitive data
Ukrzaliznytsia, Ukraine's national railway operator, has been hit by a massive cyberattack that disrupted online services for buying tickets both through mobile apps and the website. [...]
Russian internet service provider Nodex confirmed on Tuesday that its network was "destroyed" in a cyberattack claimed by Ukrainian hacktivists part of the Ukrainian Cyber Alliance [...]
The European Union's new sanctions framework will target individuals and organizations engaging in pro-Russian activities such as cyberattacks and information manipulation to undermine EU support for Ukraine.
A group of pro-Ukrainian hacktivists has claimed responsibility for the September breach of Russian security company Doctor Web (Dr.Web). [...]
Also: Ransomware Surged in 2023, MoneyGram Back in Service After CyberattackThis week, advice on spotting North Korean staff; ransomware attacks rose; MoneyGram back online; FCC fined political operative; CISA warned of water system attacks; Ukraine restricted Telegram use; North Korean hackers used new malware; U.K. arrested alleged hacker; PSNI is in data leak talks.
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. [...]
Two weeks before Russia invaded Ukraine in February 2022, a large, mysterious new Internet hosting firm called Stark Industries Solutions materialized and quickly became the epicenter of massive distributed denial-of-service (DDoS) attacks on government and commercial targets in Ukraine and Europe. An investigation into Stark Industries reveals it is being used as a global proxy network that conceals the true source of cyberattacks and disinformation campaigns against enemies of Russia.
Cybersecurity researchers have discovered a targeted operation against Ukraine that has been found leveraging a nearly seven-year-old flaw in Microsoft Office to deliver Cobalt Strike on compromised systems
The targeted operation utilized CVE-2017-8570 as the initial vector and employed a notable custom loader for Cobalt Strike, yet attribution to any known threat actor remains elusive.