Latest cybersecurity reporting from selected sources.

Also, Telus Breach, Microsoft Hotpatching, Interpol Malicious IP TakedownThis week, Russian hacker OpSec failure, Interpol helped disrupt 45,000 malicious IPs, the FBI is looking for an ATM jackpotting suspect and Telus disclosed a breach. Windows hotpatching, an FTP exploit, a foiled attack on a nuclear research center and China-linked espionage.

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.

Ukraine's Computer Emergency Response Team (CERT) says that Russian hackers are exploiting CVE-2026-21509, a recently patched vulnerability in multiple versions of Microsoft Office. [...]

Russia-linked hacking group Fancy Bear is exploiting a brand-new vulnerability in Microsoft Office, CERT-UA says

The threat actor known as EncryptHub is continuing to exploit a now-patched security flaw impacting Microsoft Windows to deliver malicious payloads

A few weeks earlier 'zeroplayer' advertised an $80K WinRAR 0-day exploit Russia-linked attackers found and exploited a high-severity WinRAR vulnerability before the maintainers of the Windows file archiver issued a fix.…

Multiple suspected Russia-linked threat actors are "aggressively" targeting individuals and organizations with ties to Ukraine and human rights with an aim to gain unauthorized access to Microsoft 365 accounts since early March 2025

The threat actors behind the zero-day exploitation of a recently-patched security vulnerability in Microsoft Windows have been found to deliver two new backdoors called SilentPrism and DarkWisp

Google has released out-of-band fixes to address a high-severity security flaw in its Chrome browser for Windows that it said has been exploited in the wild as part of attacks targeting organizations in Russia.  The vulnerability, tracked as CVE-2025-2783, has been described as a case of "incorrect handle provided in unspecified circumstances in Mojo on Windows." Mojo refers to a

Trend Research identified Russian threat actor Water Gamayun exploiting CVE-2025-26633, a zero-day vulnerability in the Microsoft Management Console that attackers exploit to execute malicious code and exfiltrate data.

'Only' a local access bug but important part of N Korea, Russia, and China attack picture An exploitation avenue found by Trend Micro has been used in an eight-year-long spying campaign, but there's no sign of a fix from Microsoft, which apparently considers this a low priority.…

Welcome to this week’s Cybersecurity News Recap. Discover how cyber attackers are using clever tricks like fake codes and sneaky emails to gain access to sensitive data. We cover everything from device code phishing to cloud exploits, breaking down the technical details into simple, easy-to-follow insights

Sandworm (aka Seashell Blizzard) has an initial access wing called "BadPilot" that uses standard intrusion tactics to spread Russia's tendrils around the world.

Microsoft has found that Russian APT Secret Blizzard piggybacks on other cybercriminals' infr4asytructure to conduct cyber espionage

ESET Discovers Two Major Vulnerabilities Exploited by Russian RomCom Hacking GroupTwo vulnerabilities in Mozilla products and Windows are actively exploited by RomCom, a Kremlin-linked cybercriminal group known for targeting businesses and conducting espionage, warn security researchers from Eset. Exploiting the two flaws together enables attackers to execute arbitrary code.

The innocuously named Russian-sponsored cyber threat actor has combined critical and serious vulnerabilities in Windows and Firefox products in a zero-click code execution exploit.

The Russia-aligned threat actor known as RomCom has been linked to the zero-day exploitation of two security flaws, one in Mozilla Firefox and the other in Microsoft Windows, as part of attacks designed to deliver the eponymous backdoor on victim systems

A newly patched security flaw impacting Windows NT LAN Manager (NTLM) was exploited as a zero-day by a suspected Russia-linked actor as part of cyber attacks targeting Ukraine

The infamous Russian threat actor has created a custom tool called GooseEgg to exploit CVE-2022-38028 in cyber-espionage attacks against targets in Ukraine, Western Europe, and North America.