Organizations need protection that operates in the gap between discovery and remediation. The post The patch window is collapsing: Why security needs a new control plane appeared first on Microsoft Security Blog.
Microsoft updated its Windows PowerToys toolset with a new utility dubbed "Window Hopper" that lets users switch between an app's windows more quickly. [...]
Thousands of companies have been affected by the Mirage2FA campaign from 2024 to 2026. The commercial phishing-as-a-service toolkit targets Microsoft 365 accounts by abusing legitimate login flows and bypassing two-factor authentication. According to ANY.RUN research, 48% of targeted email addresses were potentially compromised. Most of the affected companies are US-based. Mirage2FA Campaign
Microsoft is rolling out a new Teams meeting protection policy that allows administrators to automatically block all identified external bots from joining Teams meetings. [...]
Microsoft has confirmed that .NET Framework updates released as part of the August 2026 Patch Tuesday are breaking printing and PDF export in WPF applications. [...]
Cybersecurity researchers have flagged two new malware families called WordlistLoader and SynkLoader that's used to deliver next-stage payloads and likely sell access to ransomware groups. According to findings from Gen Digital, WordlistLoader is being used to deliver Amatera Stealer (aka ACR Stealer or AcridRain Stealer) via ClearFake campaigns, which employ the ClickFix (aka FakeCaptcha)
Microsoft has shared a temporary fix for ongoing gaming issues caused by Windows 11 updates released during the August 2026 Patch Tuesday. [...]
Cybersecurity researchers have disclosed details of a Chinese-speaking cybercrime group dubbed UAT-10147 that's targeting Windows and Linux web servers globally across the education, media, technology, and gaming sectors. The vast majority of the targets are located in Brazil, Bolivia, China, Canada, and Vietnam. Details of the threat activity came to light following the discovery of an open
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Microsoft Office. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.6.
This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code in the context of LOCAL SERVICE on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.0.
This vulnerability allows remote attackers to disclose NTLM responses on affected installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 3.3. The following CVEs are assigned: CVE-2026-50508.
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Akira Hits Safe Mode: Ransomware Rebooting Around EDR Multi-Functional Linux Botnet “Evooo1Bot” StubMaker RubyGems Campaign Delivers a Windows Infostealer Hunting MacSync Stealer infrastructure through behavioral pivots Manic: Blend between Banking Malware & Spyware […]
Windows named pipes provide fast interprocess communication, but weak access controls can expose privileged services to untrusted processes. ThreatLocker explains how endpoint verification, command authorization, strict input validation, and narrowly scoped privileges can help secure named-pipe communication. [...]
A previously unknown malware family dubbed SynkLoader is being distributed in Microsoft Teams phishing campaigns to steal credentials via a fake lock screen. [...]
Check Point Research has disclosed a technique that uses Microsoft Defender's own legitimately signed boot-time remediation driver to perform arbitrary kernel-level file and registry operations on Windows systems ranging from Windows 7 through Windows 11 25H2, with no software flaw exploited and no driver imported from outside the machine. The driver, BTR.sys (Boot Time Removal Tool), is a
Microsoft says ongoing issues causing games to crash or fail to launch after installing the August 2026 Windows updates may be caused by peripherals with RGB lighting. [...]
Microsoft has started rolling out a Classic Outlook theme for users of Outlook on the web and the New Outlook for Windows. [...]
Microsoft has patched multiple maximum-severity vulnerabilities in Entra ID, Azure Arc, and Exchange Online that allowed attackers to gain remote code execution and escalate privileges. [...]
Threat actors are abusing FTP banners to hide commands that deliver two previously undocumented remote access trojans named E4del and PINHOLE. [...]
Update: The story was updated after publication to note that the vulnerability has not been exploited. Although the security bulletin originally marked the "Exploited" field under the Exploitability Assessment table as "Yes," on August 21, 2026, Microsoft corrected the "Exploited" status to "No" after The Hacker News contacted the company for comment. It also noted, "this vulnerability was not
In every MFA rollout, there will come a time where you think you are closing in on "done", and some automation to list what's left would be handy. Something quicker than scrolling through the web interface through thousands of accounts ...
 This is that method.
 Also, remember when we discussed yesterday about the beta graph commands in the Microsoft.Graph.Beta library? We'll use one of those beta commands here!
One thing that folks never seem to do after "going to the CLOOOOUUUUD" is to look at their logs, logs that they would have checked daily when things were on premise.
 One log that really bears looking at is the log of successful and failed logins. the call for that is:
Suspected military-grade hackers based in China used artificial intelligence to develop malware in a campaign to penetrate Central Asian governments.
Written by: Gabby Roncone, Wesley Shields Overview Google Threat Intelligence Group (GTIG) is tracking three distinct suspected Russian cyber espionage threat clusters abusing legitimate authentication flows to target individuals working in academia, aerospace and defense, governments and think tanks across Europe, as well as academia and think tanks within the United States. Examples of these techniques can be found in our previous blog on UNC6293’s phishing operations. We now track an additio…
Building on the last diary on Using MS Graph and Powershell, let's look at "Risky" logins.
Research by: Jiří Vinopal (@vinopaljiri) Abstract What if a trusted security component could be repurposed into an attacker-controlled kernel primitive? What if a signed Microsoft remediation driver could be instructed to execute arbitrary file and registry operations from Ring 0 – without exploits, vulnerabilities, or memory corruption? In this publication, we present the first full […] The post BTR Reforged: Weaponizing Defender’s Remediation Driver as a Kernel Operation Primitive appeared fi…
Microsoft Graph is a newer API that is meant to replace several others.  OK, it's at version 2.3.9, so it's not all that new, but it's new enough that lots of folks (and commercial tools) aren't using it yet.   It allows you to Get and Set info from/to M365, Entra Users and Entra managed machines for starters.  Let's dig in!
A joint cybersecurity advisory released by multiple U.S. government agencies warns that threat actors are using AI-generated exploitation scripts to target exposed Siemens S7 Series PLCs across critical infrastructure sectors.Key TakeawaysUnattributed threat actors are exploiting known weaknesses and unnecessary internet exposure to conduct reconnaissance and possible pre-positioning for future disruptive attacks against Siemens S7 Series PLCs.The attackers are leveraging AI to build and refine…
Microsoft is investigating a potential issue with the August 2026 updates that may prevent some games from launching or cause them to crash on affected Windows 11 systems. [...]
