Latest cybersecurity reporting from selected sources.

Microsoft today pushed software updates to fix a staggering 167 security vulnerabilities in its Windows operating systems and related software, including a SharePoint Server zero-day and a publicly disclosed weakness in Windows Defender dubbed "BlueHammer." Separately, Google Chrome fixed its fourth zero-day of 2026, and an emergency update for Adobe Reader nixes an actively exploited flaw that can lead to remote code execution.

Also, Sedgwick Confirms Breach, Romanian Power Firm Hit, D-Link Flaws ExploitedThis week, Moody's said firewalls will be obsolete, Romanian critical infrastructure hacked, Sedgwick breach and a D-Link DSL flaw. Finland seized the Fitburg. Microsoft said Direct Send not to blame for Exchange phishing. Malicious Chrome extensions, European hotels targeted and health breaches.

Also, Sedgwick Confirms Breach, Romanian Power Firm Hit, D-Link Flaws ExploitedThis week, Moody's said firewalls will be obsolete, Romanian critical infrastructure hacked, Sedgwick breach and a D-Link DSL flaw. Finland seized the Fitburg. Microsoft said Direct Send not to blame for Exchange phishing. Malicious Chrome extensions, European hotels targeted and health breaches.

This week saw a lot of new cyber trouble. Hackers hit Fortinet and Chrome with new 0-day bugs. They also broke into supply chains and SaaS tools. Many hid inside trusted apps, browser alerts, and software updates

Mozilla has released updates to address a critical security flaw impacting its Firefox browser for Windows, merely days after Google patched a similar flaw in Chrome that came under active exploitation as a zero-day

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

A recently patched security flaw in Google Chrome and other Chromium web browsers was exploited as a zero-day by North Korean actors in a campaign designed to deliver the FudModule rootkit

Also: Turla Targets European Missions and Google Patches Chrome Zero-DaysThis week, hackers used a Linus backdoor and a Microsoft client management tool; Santander Bank, the Helsinki Education Division, an Australian energy provider and auction house Christie's were breached; hackers targeted European missions in the Middle East; and Google patched a zero-day flaw.

Microsoft today released updates to fix more than 60 security holes in Windows computers and supported software, including two "zero-day" vulnerabilities in Windows that are already being exploited in active attacks. There are also important security patches available for macOS and Adobe users, and for the Chrome Web browser, which just patched its own zero-day flaw.

Google Fixes Out-of-Bounds Memory Access Flaw, Microsoft Edge Browser Also AffectedGoogle released an urgent fix for the first zero-day vulnerability of the year in its Chrome web browser, warning the bug is under active exploitation. Google blamed an out-of-bounds memory access flaw in its V8 JavaScript rendering engine. It also affects Microsoft Edge browser.

Nothing under exploit… Is this the calm before the storm? Patch Tuesday Microsoft rang in the New Year with a relatively calm Patch Tuesday: Just 49 Windows security updates including fixes for two critical-rated bugs, plus four high-severity Chrome flaws in Microsoft Edge.…

At least half of dozen GitHub accounts from fake researchers associated with a fraudulent cybersecurity company have been observed pushing malicious repositories on the code hosting service

The outlook is grim for Outlook - and SAP, Adobe. Android, and Chrome - so get ready for a long update party Patch Tuesday Microsoft's March Patch Tuesday includes new fixes for 74 bugs, two of which are already being actively exploited, and nine that are rated critical. Let's start with the two that miscreants found before Redmond issued a fix.…

Google has released Chrome 108.0.5359.94/.95 for Windows, Mac, and Linux users to address a single high-severity security flaw, the ninth Chrome zero-day exploited in the wild patched since the start of the year. [...]

A Barcelona-based surveillanceware vendor named Variston IT is said to have surreptitiously planted spyware on targeted devices by exploiting several zero-day flaws in Google Chrome, Mozilla Firefox, and Windows, some of which date back to December 2018

A Barcelona-based surveillanceware vendor named Variston IT is said to have surreptitiously planted spyware on targeted devices by exploiting several zero-day flaws in Google Chrome, Mozilla Firefox, and Windows, some of which date back to December 2018

Google has released Chrome 105.0.5195.102 for Windows, Mac, and Linux users to address a high-severity zero-day security flaw exploited by attackers in attacks, the sixth Chrome zero-day patched this year. [...]

The actively exploited but now-fixed Google Chrome zero-day flaw that came to light earlier this month was weaponized by an Israeli spyware company and used in attacks targeting journalists in the Middle East

Google has released Chrome 103.0.5060.114 for Windows users to address a high-severity zero-day vulnerability exploited by attackers in the wild, the fourth Chrome zero-day patched in 2022. [...]

The APT is pairing a known Microsoft flaw with a malicious document to load malware that nabs credentials from Chrome, Firefox and Edge browsers.