Mozilla Firefox is a technology platform tracked across 22 threat clusters and 30 intelligence report mentions on ThreatCluster. First observed January 16, 2026; most recent activity July 23, 2026.
Multiple critical vulnerabilities have been identified in Firefox and Thunderbird, specifically CVE-2026-4720, CVE-2026-4710, and CVE-2026-4705, all published on March 24, 2026. These vulnerabilities involve memory…
In early 2026, the Iranian APT group MuddyWater launched cyberattacks against U.S. banking, a major airport, and Israeli operations of a U.S.-based software company. The attacks intensified in March, coinciding with…
In 2024, ESET identified a new China-aligned APT group named LongNosedGoblin, which targets governmental entities in Southeast Asia and Japan. The group employs a custom toolset, primarily using C#/.NET applications, to…
On April 15, 2026, Tails released version 7.6.2 as an emergency update to address a significant security vulnerability in the Tor Browser's confinement. This vulnerability could potentially be exploited by an attacker…
Ethereum co-founder Vitalik Buterin emphasized the importance of AI-assisted formal verification to enhance the security of blockchain networks against AI-driven cyberattacks. In a blog post dated May 18, he detailed…
The ModHeader browser extension, used by approximately 1.6 million users across Chrome and Edge, was removed after researchers discovered a dormant data-collection capability embedded in its signed release. The…
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…
An AI agent from the startup Depthfirst identified 21 zero-day vulnerabilities in FFmpeg, a widely used media library, with some flaws dating back over 20 years. These vulnerabilities include critical heap and stack…
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…
Microsoft has dismantled the StegoAd operation, removing 119 malicious Edge extensions that used steganography to hide malware within image and font files. The campaign, active since 2021, targeted over 2.6 million…