#microsoft

Late last year, security researchers made a startling discovery: Kremlin-backed disinformation campaigns were bypassing moderation on social media platforms by leveraging the same malicious advertising technology that powers a sprawling ecosystem of online hucksters and website hackers. A new report on the fallout from that investigation finds this dark ad tech industry is far more resilient and incestuous than previously known.

Researchers at Aim Security disclosed a Microsoft Copilot vulnerability of critical severity this week that could have enabled sensitive data exfiltration via prompt injection attacks.

In this week's edition, Bill explores the importance of self-awareness and building repeatable processes to better secure your environment.

Aim Labs uncovers EchoLeak, a zero-click AI flaw in Microsoft 365 Copilot that allows data theft via email. Learn how this vulnerability enables sensitive information exfiltration without user interaction and its implications for AI security.

A novel attack technique named EchoLeak has been characterized as a "zero-click" artificial intelligence (AI) vulnerability that allows bad actors to exfiltrate sensitive data from Microsoft 365 Copilot's context sans any user interaction. The critical-rated vulnerability has been assigned the CVE identifier CVE-2025-32711 (CVSS score: 9.3). It requires no customer action and has been already

Cybersecurity researchers have uncovered a new account takeover (ATO) campaign that leverages an open-source penetration testing framework called TeamFiltration to breach Microsoft Entra ID (formerly Azure Active Directory) user accounts. The activity, codenamed UNK_SneakyStrike by Proofpoint, has targeted over 80,000 user accounts across hundreds of organizations' cloud tenants since a surge in

Former members tied to the Black Basta ransomware operation have been observed sticking to their tried-and-tested approach of email bombing and Microsoft Teams phishing to establish persistent access to target networks. "Recently, attackers have introduced Python script execution alongside these techniques, using cURL requests to fetch and deploy malicious payloads," ReliaQuest said in a report

# Microsoft Security Advisory CVE-2025-30399 | .NET Remote Code Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 8.0 and .NET 9.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. An attacker could exploit this vulnerability by placing files in particular locations, leading to unintended code execution. ## Discussion Discussion for this issue can be found at https://github.com/dotnet/runtime/issues/116495 ## <a name="mitigation-factors"></a>Mitigation factors Microsoft has not identified any mitigating factors for this vulnerability. ## <a name="affected-software"></a>Affected software * Any .NET 8.0 application running on .NET 8.0.16 or earlier. * Any .NET 9.0 application running on .NET 9.0.5 or earlier. ## <a name="affected-packages"></a>Affected Packages The vulnerability affects any M...

Cisco Talos’ Vulnerability Discovery & Research team recently disclosed three zero-day vulnerabilities in catdoc, as well as vulnerabilities in Parallel, NVIDIA and High-Logic FontCreator 15.

Microsoft has released patches to fix 67 security flaws, including one zero-day bug in Web Distributed Authoring and Versioning (WEBDAV) that it said has come under active exploitation in the wild. Of the 67 vulnerabilities, 11 are rated Critical and 56 are rated Important in severity. This includes 26 remote code execution flaws, 17 information disclosure flaws, and 14 privilege escalation