Latest cybersecurity reporting from selected sources.

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

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

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

Ukraine's biggest telecom operator Kyivstar has become the victim of a cyber attack, disrupting customer access to mobile and internet services

The Computer Emergency Response Team of Ukraine (CERT-UA) has revealed that threat actors "interfered" with at least 11 telecommunication service providers in the country between May and September 2023

The Computer Emergency Response Team of Ukraine (CERT-UA) on Tuesday said it thwarted a cyber attack against an unnamed critical energy infrastructure facility in the country

The Russian state-sponsored cyber espionage group known as Gamaredon has continued its digital onslaught against Ukraine, with recent attacks leveraging the popular messaging app Telegram to strike military and law enforcement sectors in the country

Government entities in Ukraine have been breached as part of a new campaign that leveraged trojanized versions of Windows 10 installer files to conduct post-exploitation activities

The Ukrainian government on Monday warned of "massive cyberattacks" by Russia targeting critical infrastructure facilities located in the country and that of its allies

Ukrainian radio operator TAVR Media on Thursday became the latest victim of a cyberattack, resulting in the broadcast of a fake message that President Volodymyr Zelenskyy was seriously ill

The Five Eyes nations comprising Australia, Canada, New Zealand, the U.K., and the U.S., along with Ukraine and the European Union, formally pinned Russia for masterminding an attack on an international satellite communication (SATCOM) provider that had "spillover" effects across Europe

Unless you are living completely off the grid, you know the horrifying war in Ukraine and the related geopolitical tensions have dramatically increased cyberattacks and the threat of even more to come

At least six different Russia-aligned actors launched no less than 237 cyberattacks against Ukraine from February 23 to April 8, including 38 discrete destructive attacks that irrevocably destroyed files in hundreds of systems across dozens of organizations in the country

The Five Eyes nations have released a joint cybersecurity advisory warning of increased malicious attacks from Russian state-sponsored actors and criminal groups targeting critical infrastructure organizations amidst the ongoing military siege on Ukraine

The Computer Emergency Response Team of Ukraine (CERT-UA) on Tuesday disclosed that it thwarted a cyberattack by Sandworm, a hacking group affiliated with Russia's military intelligence, to sabotage the operations of an unnamed energy provider in the country

The cyberattack aimed at Viasat that temporarily knocked KA-SAT modems offline on February 24, 2022, the same day Russian military forces invaded Ukraine, is believed to have been the consequence of wiper malware, according to the latest research from SentinelOne

The U.S. government on Monday once again cautioned of potential cyber attacks from Russia in retaliation for economic sanctions imposed by the west on the country following its military assault on Ukraine last month

Microsoft on Monday disclosed that it detected a new round of offensive and destructive cyberattacks directed against Ukraine's digital infrastructure hours before Russia launched its first missile strikes last week