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Citizen Lab: Law Enforcement Used Webloc to Track 500 Million Devices via Ad Data
Hungarian domestic intelligence, the national police in El Salvador, and several U.S. law enforcement and police departments have been attributed to the use of an advertising-based global geolocation surveillance system called Webloc. The tool was developed by Israeli...
GlassWorm Campaign Uses Zig Dropper to Infect Multiple Developer IDEs
Cybersecurity researchers have flagged yet another evolution of the ongoing GlassWorm campaign, which employs a new Zig dropper that's designed to stealthily infect all integrated development environments (IDEs) on a developer's machine. The technique has been...
Marimo RCE Flaw CVE-2026-39987 Exploited Within 10 Hours of Disclosure
A critical security vulnerability in Marimo, an open-source Python notebook for data science and analysis, has been exploited within 10 hours of public disclosure, according to findings from Sysdig. The vulnerability in question is CVE-2026-39987 (CVSS score: 9.3), a...
Browser Extensions Are the New AI Consumption Channel That No One Is Talking About
While much of the discussion on AI security centers around protecting ‘shadow’ AI and GenAI consumption, there's a wide-open window nobody's guarding: AI browser extensions. A new report from LayerX exposes just how deep this blind spot goes, and why AI extensions...
Google Rolls Out DBSC in Chrome 146 to Block Session Theft on Windows
Google has made Device Bound Session Credentials (DBSC) generally available to all Windows users of its Chrome web browser, months after it began testing the security feature in open beta. The public availability is currently limited to Windows users on Chrome 146,...
Backdoored Smart Slider 3 Pro Update Distributed via Compromised Nextend Servers
Unknown threat actors have hijacked the update system for the Smart Slider 3 Pro plugin for WordPress and Joomla to push a poisoned version containing a backdoor. The incident impacts Smart Slider 3 Pro version 3.5.1.35 for WordPress, per WordPress security company...
EngageLab SDK Flaw Exposed 50M Android Users, Including 30M Crypto Wallets
Details have emerged about a now-patched security vulnerability in a widely used third-party Android software development kit (SDK) called EngageLab SDK that could have put millions of cryptocurrency wallet users at risk. "This flaw allows apps on the same device to...
UAT-10362 Targets Taiwanese NGOs with LucidRook Malware in Spear-Phishing Campaigns
A previously undocumented threat cluster dubbed UAT-10362 has been attributed to spear-phishing campaigns targeting Taiwanese non-governmental organizations (NGOs) and suspected universities to deploy a new Lua-based malware called LucidRook. "LucidRook is a...
ThreatsDay Bulletin: Hybrid P2P Botnet, 13-Year-Old Apache RCE and 18 More Stories
Thursday. Another week, another batch of things that probably should've been caught sooner but weren't. This one's got some range — old vulnerabilities getting new life, a few "why was that even possible" moments, attackers leaning on platforms and tools you'd...
Adobe Reader Zero-Day Exploited via Malicious PDFs Since December 2025
Threat actors have been exploiting a previously unknown zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December 2025. The finding, detailed by EXPMON's Haifei Li, has been described as a highly-sophisticated PDF...
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