Latest cybersecurity reporting from selected sources.

GREYVIBE, a Russia-linked group active since 2025, targets Ukraine with AI-assisted malware and five attack chains. Researchers say it’s part spy op, part crime gang. Security firm WithSecure has been tracking a previously unknown Russian-linked APT group called GREYVIBE since at least August 2025. The group targets Ukraine and Ukrainian-related organizations across military, government, civilian, […]

Researchers say 'GREYVIBE' crew used AI tools throughout a campaign targeting Ukrainian military and government

Widely Used ukr.net Is a Repeat Focus for APT28 Cyberespionage OperationsDon't expect cyber spies to respect distinctions between military and civilian networks, especially in times of war, warn researchers tracking persistent Russian military intelligence credential-harvesting attacks against users of Ukraine's popular, commercial UKR.NET webmail platform.

Misconfigured Customer Network Edge Devices' Under Fire, Warn ResearchersMisconfigured edge devices hosted in the cloud are giving nation-state hackers carte blanche to access Western critical infrastructure, warn threat intelligence experts at Amazon, who tied exploits of AWS customers' device administrator portals to Russia's GRU military intelligence agency.

Amazon researchers believe this campaign is part of a bigger operation spearheaded by Russia’s military intelligence service, the GRU

Cybersecurity researchers have revealed that Russian military personnel are the target of a new malicious campaign that distributes Android spyware under the guise of the Alpine Quest mapping software

Google researchers have observed Russian threat actor UNC5812 using a malware campaign via Telegram to access the devices of Ukrainian military recruits

US alarmed by heightened Kremlin naval activity worldwide Russia's naval activity near undersea cables is reportedly drawing the scrutiny of US officials, further sparking concerns that the Kremlin may be plotting to "sabotage" underwater infrastructure via a secretive, dedicated military unit called the General Staff Main Directorate for Deep Sea Research (GUGI).…

Hackers Part of Callisto and Armageddon GroupsThe European Union sanctioned four Russian domestic intelligence agency hackers including two military officers who participated in what researchers have described as "hack and leak" operations. Also coming under sanctions are ransomware hackers part of the Wizard Spider criminal group.

Kapeka Shows Similarities to Russian GRU Hacking Group's GreyEnergy MalwareLikely Russian military intelligence hackers known as Sandworm since at least mid-2022 have deployed a new and highly flexible back door against Eastern European targets, warn security researchers. Security firm WithSecure dubs the backdoor "Kapeka."

Research Shows Military Suffers From Disjointed Cyber Operations Amid New ThreatsThe Foundation for Defense of Democracies on Monday released a white paper that urges Congress to establish a seventh military branch to serve as an independent armed cyber service amid growing threats in cyberspace from foreign adversaries such as Russia and China.

Hackers Used LLMs to Perform Tasks That Non-AI Tools Can PerformNation-state hackers including Russian military intelligence and hackers backed by China have used OpenAI large language models for research and to craft phishing emails, the artificial intelligence company disclosed Tuesday in conjunction with major financial backer Microsoft.

Google and Mandiant Researchers Track Russia-Ukraine War Tactics Ahead of ElectionsRussia continues to focus on running cyber operations and espionage that target Ukraine's military, government and civil society in support of its ground campaign, researchers at Google said, warning that the information operations will likely soon be brought to bear on Western elections.

Kim Jong Un's cyber-goons aren't above attacking the regime's few friends Two North Korean hacker groups had access to the internal systems of Russian missile and satellite developer NPO Mashinostoyeniya for five to six months, cyber security firm SentinelOne asserted on Monday. The attack illustrates potential North Korean efforts to advance development of missile and other military tech via cyber espionage.…

At least two research institutes located in Russia and a third likely target in Belarus have been at the receiving end of an espionage attack by a Chinese nation-state advanced persistent threat (APT)

Six Russian state-backed threat actors have lunched 237 cyberattacks on Ukraine's infrastructure, new research from MIcrosoft shows.

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