Lax extension permissions and improper trust implementation allow attackers to inject prompts in the Claude Chrome extension. The post Vulnerability in Claude Extension for Chrome Exposes AI Agent to Takeover appeared first on SecurityWeek.
Microsoft has disclosed and fully remediated three critical information disclosure vulnerabilities affecting Microsoft 365 Copilot and Copilot Chat in Microsoft Edge, all released on May 7, 2026, requiring no action from end users or administrators. Microsoft’s Security Response Center published adv
In this weekly roundup from The Cyber Express, the global cybersecurity landscape continues to show rapid and uneven change, shaped by both regulatory shifts and escalating cyber threats. Governments are tightening oversight of new technologies such as artificial intelligence, while threat actors ar
The European Union has reached a provisional agreement to amend parts of the EU AI Act, introducing simplification measures for businesses while also expanding restrictions on harmful AI applications, including so-called “nudifier” apps and AI-generated child sexual abuse material. The agreement, re
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has launched a new initiative called “CI Fortify” aimed at helping critical infrastructure operators prepare for disruptive cyberattacks linked to geopolitical conflicts. The initiative comes amid growing concerns over nation-state cyb
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Cybersecurity researchers have disclosed details of a new Linux backdoor named PamDOORa that's being advertised on the Rehub Russian cybercrime forum for $1,600 by a threat actor called "darkworm." The backdoor is designed as a Pluggable Authentication Module (PAM)-based post-exploitation toolkit th
The website for the popular JDownloader download manager was compromised earlier this week to distribute malicious Windows and Linux installers, with the Windows payload found deploying a Python-based remote access trojan. [...]
A malicious Hugging Face repository that reached the platform's trending list impersonated OpenAI's "Privacy Filter" project to deliver information-stealing malware to Windows users. [...]
The attack on the Trellix source code repository disclosed last week has been claimed by the RansomHouse threat group, which leaked a small set of images as proof of the intrusion. [...]
Škoda Auto has disclosed a significant IT security incident affecting its official online shop, revealing that unauthorized individuals exploited a vulnerability in the platform’s standard shop software to gain temporary unauthorized access to customer data. During routine technical security monitor
A newly identified malware campaign is targeting senior executives and government investigators across Southeast Asia, using a modular Remote Access Trojan capable of stealing credentials, capturing screenshots, and maintaining deep persistence on infected systems. The operation, dubbed Operation Gr
A system that thousands of schools and universities use went offline due to a cyberattack, creating chaos as students tried to study for finals. The post Cyberattack Hits Canvas System Used by Thousands of Schools as Finals Loom appeared first on SecurityWeek.
RansomHouse has published several screenshots to demonstrate access to internal Trellix services. The post Ransomware Group Takes Credit for Trellix Hack appeared first on SecurityWeek.
Hackers accessed one of the company’s AWS accounts and compromised AI provider secrets stored in Braintrust. The post AI Firm Braintrust Prompts API Key Rotation After Data Breach appeared first on SecurityWeek.
Hackers who gained access to the databases of Spanish fast-fashion retailer Zara stole data belonging to more than 197,000 customers, according to data breach notification service Have I Been Pwned. [...]
The dark secret of enterprise security operations is that defenders have quietly institutionalized the practice of not looking. This is not just anecdotal, but rather backed by a recent report investigating more than 25 million security alerts, including informational and low-severity, across live e
Cybersecurity researchers have discovered fraudulent apps on the official Google Play Store for Android that falsely claimed to offer access to call histories for any phone number, only to trick users into joining a subscription that provided fake data and incurred financial loss. The 28 apps have c
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Ivanti warned customers today to patch a high-severity remote code execution vulnerability in Endpoint Manager Mobile (EPMM) exploited in zero-day attacks. [...]