Microsoft Windows is a technology platform tracked across 9 threat clusters and 9 intelligence report mentions on ThreatCluster. First observed November 13, 2025; most recent activity July 15, 2026.
Google's Threat Intelligence Group tracked 90 zero-day vulnerabilities exploited in 2025, a rise from 78 in 2024. Less than half of these vulnerabilities were attributed to specific threat actors, with spyware vendors…
A new phishing campaign has been identified that distributes a variant of the PureLogs infostealer malware through deceptive purchase-order-themed emails. The campaign utilizes a malicious JavaScript file contained in a…
Anthropic has announced the launch of Project Glasswing, utilizing its unreleased AI model, Claude Mythos Preview, to identify and exploit thousands of critical software vulnerabilities across major operating systems…
A security researcher, known as Chaotic Eclipse, has publicly released exploit code for a zero-day vulnerability in Windows, dubbed BlueHammer, allowing local privilege escalation to SYSTEM or elevated administrator…
As of February 12, 2026, organizations worldwide are experiencing an average of 2,090 cyber-attacks per week, largely driven by ransomware incidents. This increase highlights the ongoing challenges faced by businesses…
ESET's annual report on Windows exploitation in 2015 reveals a significant increase in patched vulnerabilities, quadrupling from the previous year. The report highlights that Internet Explorer remained the most patched…
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added several new vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, including flaws in SolarWinds Web Help Desk, Notepad++,…
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added vulnerabilities from WatchGuard Firebox, Microsoft Windows, and Gladinet Triofox to its Known Exploited Vulnerabilities (KEV) catalog. Among…
Recent cybersecurity reports detail multiple threats, including Oracle Concurrent Processing Remote Code Execution and various Clop ransomware variants. Affected systems include those protected by Check Point IPS and…