Iran-Linked RedKitten Cyber Campaign Targets Human Rights NGOs and Activists

A Farsi-speaking threat actor aligned with Iranian state interests is suspected to be behind a new campaign targeting non-governmental organizations and individuals involved in documenting recent human rights abuses. The activity, observed by HarfangLab in January 2026, has been codenamed...

Hackers Still Using Patched WinRAR Flaw for Malware Drops, Warns Google

The Google Threat Intelligence Group GTIG warns that nation-state actors and financially motivated threat actors are exploiting a…...

Google Warns of Active Exploitation of WinRAR Vulnerability CVE-2025-8088

Google on Tuesday revealed that multiple threat actors, including nation-state adversaries and financially motivated groups, are exploiting a now-patched critical security flaw in RARLAB WinRAR to establish initial access and deploy a diverse array of payloads. "Discovered and patched in July 202...

China-Linked Hackers Have Used the PeckBirdy JavaScript C2 Framework Since 2023

Cybersecurity researchers have discovered a JScript-based command-and-control C2 framework called PeckBirdy that has been put to use by China-aligned APT actors since 2023 to target multiple environments. The flexible framework has been put to use against Chinese gambling industries and malicious...

Security strategies for safeguarding governmental data

The Deputy CISO blog series is where Microsoft Deputy Chief Information Security Officers CISOs share their thoughts on what is most important in their respective domains. In this series, you will get practical advice, tactics to start and stop deploying, forward-looking commentary on where the...

Top 10 Threat Actors: Their Tactics & Motivations

The world of cybercrime has its own cast of characters, each with a unique script. Some are patient spies, like state-sponsored groups that move silently within a network for months to gather intelligence. Others are loud and aggressive, like ransomware gangs that operate like ruthless businesses...

CVE-2026-22645

The application discloses all used components, versions and license information to unauthenticated actors, giving attackers the opportunity to target known security vulnerabilities of used components...

CVE-2026-22645

The application discloses all used components, versions and license information to unauthenticated actors, giving attackers the opportunity to target known security vulnerabilities of used components...

CVE-2026-22645

The application discloses all used components, versions and license information to unauthenticated actors, giving attackers the opportunity to target known security vulnerabilities of used components...

CVE-2026-20821

Exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call allows an unauthorized attacker to disclose information locally...

Inside RedVDS: How a single virtual desktop provider fueled worldwide cybercriminal operations

Over the past year, Microsoft Threat Intelligence observed the proliferation of RedVDS, a virtual dedicated server VDS provider used by multiple financially motivated threat actors to commit business email compromise BEC, mass phishing, account takeover, and financial fraud. Microsoft’s...

CVE-2026-20937

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally...

CVE-2026-20805

Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally...

CVE-2026-20827

Exposure of sensitive information to an unauthorized actor in Tablet Windows User Interface TWINUI Subsystem allows an authorized attacker to disclose information locally...

CVE-2026-20805

CVE-2026-20805 is a local information-disclosure vulnerability in Microsoft Windows Desktop Window Manager (dwm.exe). The provided documents describe that an authenticated, low-privilege user can leak sensitive information via improper handling of ALPC-related structures (ALPC ports/sections) and...

Windows File Explorer Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally...

Microsoft Windows File Explorer Spoofing Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to perform spoofing over a network...

PT-2026-2739

CVE-2026-20937 Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally. https://t.co/7wV1JGOJF9...

CVE-2023-31998

A heap overflow vulnerability found in EdgeRouters and Aircubes allows a malicious actor to interrupt UPnP service to said devices...

CVE-2023-40735

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Cavo – Connecting for a Safer World BUTTERFLY BUTTON Architecture flaw allows loss of plausible deniability and confidentiality.This issue affects BUTTERFLY BUTTON: As of 2023-08-21...