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The China-linked cyber espionage group tracked as APT41 has been attributed to a new campaign targeting government IT services in the African region. "The attackers used hardcoded names of internal services, IP addresses, and proxy servers embedded within their malware," Kaspersky researchers Denis Kulik and Daniil Pogorelov said . "One of the C2s [command-and-control servers] was a captive SharePoint server within the victim's infrastructure." APT41 is the moniker assigned to a prolific Chinese nation-state hacking group that's known for targeting organizations spanning multiple sectors, including telecom and energy providers, educational institutions, healthcare organizations and IT energy companies in more than three dozen countries. What makes the campaign noteworthy is its focus on Africa, which, as the Russian cybersecurity vendor noted, "had experienced the least activity" from this specific threat actor. That said, the findings line u...

A new attack campaign has compromised more than 3,500 websites worldwide with JavaScript cryptocurrency miners, marking the return of browser-based cryptojacking attacks once popularized by the likes of CoinHive .  Although the service has since shuttered after browser makers took steps to ban miner-related apps and add-ons, researchers from the c/side said they found evidence of a stealthy miner packed within obfuscated JavaScript that assesses the computational power of a device and spawns background Web Workers to execute mining tasks in parallel without raising any alarm. More importantly, the activity has been found to leverage WebSockets to fetch mining tasks from an external server, so as to dynamically adjust the mining intensity based on the device capabilities and accordingly throttle resource consumption to maintain stealth. "This was a stealth miner, designed to avoid detection by staying below the radar of both users and security tools," security researcher ...

Google on Tuesday rolled out fixes for six security issues in its Chrome web browser, including one that it said has been exploited in the wild. The high-severity vulnerability in question is CVE-2025-6558 (CVSS score: 8.8), which has been described as an incorrect validation of untrusted input in the browser's ANGLE and GPU components. "Insufficient validation of untrusted input in ANGLE and GPU in Google Chrome prior to 138.0.7204.157 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page," according to the description of the flaw from the NIST's National Vulnerability Database (NVD). ANGLE, short for "Almost Native Graphics Layer Engine," acts as a translation layer between Chrome's rendering engine and device-specific graphics drivers. Vulnerabilities in the module can let attackers escape Chrome's sandbox by abusing low-level GPU operations that browsers usually keep isolated, making this a rare but powerful path...

Cybersecurity researchers have uncovered over 40 malicious browser extensions for Mozilla Firefox that are designed to steal cryptocurrency wallet secrets, putting users' digital assets at risk. "These extensions impersonate legitimate wallet tools from widely-used platforms such as Coinbase, MetaMask, Trust Wallet, Phantom, Exodus, OKX, Keplr, MyMonero, Bitget, Leap, Ethereum Wallet, and Filfox," Koi Security researcher Yuval Ronen said . The large-scale campaign is said to have been ongoing since at least April 2025, with new extensions uploaded to the Firefox Add-ons store as recently as last week. The identified extensions have been found to artificially inflate their popularity, adding hundreds of 5-star reviews that go far beyond the total number of active installations. This strategy is employed to give them an illusion of authenticity, making it seem like they are widely adopted and tricking unsuspecting users into installing them. Another tactic adopted by ...

Despite years of investment in Zero Trust, SSE, and endpoint protection, many enterprises are still leaving one critical layer exposed: the browser. It's where 85% of modern work now happens. It's also where copy/paste actions, unsanctioned GenAI usage, rogue extensions, and personal devices create a risk surface that most security stacks weren't designed to handle. For security leaders who know this blind spot exists but lack a roadmap to fix it, a new framework may help. The Secure Enterprise Browser Maturity Guide: Safeguarding the Last Mile of Enterprise Risk , authored by cybersecurity researcher Francis Odum, offers a pragmatic model to help CISOs and security teams assess, prioritize, and operationalize browser-layer security. It introduces a clear progression from basic visibility to real-time enforcement and ecosystem integration, built around real-world threats, organizational realities, and evolving user behavior. Why the Browser Has Become the Security Blind Spot Over ...

Google has released security updates to address a vulnerability in its Chrome browser for which an exploit exists in the wild. The zero-day vulnerability, tracked as CVE-2025-6554 (CVSS score: 8.1), has been described as a type confusion flaw in the V8 JavaScript and WebAssembly engine. "Type confusion in V8 in Google Chrome prior to 138.0.7204.96 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page," according to a description of the bug on the NIST's National Vulnerability Database (NVD). Type confusion vulnerabilities can have severe consequences as they can be exploited to trigger unexpected software behavior, resulting in the execution of arbitrary code and program crashes. Zero-day bugs like this are especially risky because attackers often start using them before a fix is available. In real-world attacks, these flaws can let hackers install spyware, launch drive-by downloads, or quietly run harmful code — sometimes just by getting...

Cybersecurity researchers have exposed a previously unknown threat actor known as Water Curse that relies on weaponized GitHub repositories to deliver multi-stage malware. "The malware enables data exfiltration (including credentials, browser data, and session tokens), remote access, and long-term persistence on infected systems," Trend Micro researchers Jovit Samaniego, Aira Marcelo, Mohamed Fahmy, and Gabriel Nicoleta said in an analysis published this week. The "broad and sustained" campaign, first spotted last month, set up repositories offering seemingly innocuous penetration testing utilities, such as SMTP email bomber and Sakura-RAT, but harbored within their Visual Studio project configuration files malicious payloads that are designed to siphon sensitive data. Water Curse's arsenal incorporates a wide range of tools and programming languages, underscoring their cross-functional development capabilities to target the supply chain with "develope...

Cybersecurity researchers have shed light on a previously undocumented Rust-based information stealer called Myth Stealer that's being propagated via fraudulent gaming websites. "Upon execution, the malware displays a fake window to appear legitimate while simultaneously decrypting and executing malicious code in the background," Trellix security researchers Niranjan Hegde, Vasantha Lakshmanan Ambasankar, and Adarsh S said in an analysis. The stealer, initially marketed on Telegram for free under beta in late December 2024, has since transitioned to a malware-as-a-service (MaaS) model. It's equipped to steal passwords, cookies, and autofill information from both Chromium- and Gecko-based browsers, such as Google Chrome, Microsoft Edge, Brave, Opera, Vivaldi, and Mozilla Firefox. The operators of the malware have been found maintaining a number of Telegram channels to advertise the sale of compromised accounts as well as provide testimonials of their service. The...

Cybersecurity researchers have flagged several popular Google Chrome extensions that have been found to transmit data in HTTP and hard-code secrets in their code, exposing users to privacy and security risks. "Several widely used extensions [...] unintentionally transmit sensitive data over simple HTTP," Yuanjing Guo, a security researcher in the Symantec's Security Technology and Response team, said . "By doing so, they expose browsing domains, machine IDs, operating system details, usage analytics, and even uninstall information, in plaintext." The fact that the network traffic is unencrypted also means that they are susceptible to adversary-in-the-middle (AitM) attacks, allowing malicious actors on the same network such as a public Wi-Fi to intercept and, even worse, modify this data, which could lead to far more serious consequences. The list of identified extensions are below - SEMRush Rank (extension ID: idbhoeaiokcojcgappfigpifhpkjgmab) and P...

Traditional data leakage prevention (DLP) tools aren't keeping pace with the realities of how modern businesses use SaaS applications. Companies today rely heavily on SaaS platforms like Google Workspace, Salesforce, Slack, and generative AI tools, significantly altering the way sensitive information is handled. In these environments, data rarely appears as traditional files or crosses networks in ways endpoint or network-based DLP tools can monitor. Yet, most companies continue using legacy DLP systems, leaving critical security gaps. A new white paper, Rethinking DLP For The SaaS Era: Why Browser-Centric DLP is the New Mandate , identifies precisely why current DLP methods struggle to secure modern SaaS-driven workflows. It also explores how browser-native security addresses these gaps by focusing security efforts exactly where user interactions occur, in the browser. Why Traditional DLP Tools Fall Short Traditional DLP solutions were built for a simpler time when sensitive...

Google has revealed that it will no longer trust digital certificates issued by Chunghwa Telecom and Netlock citing "patterns of concerning behavior observed over the past year." The changes are expected to be introduced in Chrome 139, which is scheduled for public release in early August 2025. The current major version is 137.  The update will affect all Transport Layer Security (TLS) server authentication certificates issued by the two Certificate Authorities (CAs) after July 31, 2025, 11:59:59 p.m. UTC. Certificates issued before that date will not be impacted. Chunghwa Telecom is Taiwan's largest integrated telecom service provider and Netlock is a Hungarian company that offers digital identity, electronic signature, time stamping, and authentication solutions. "Over the past several months and years, we have observed a pattern of compliance failures, unmet improvement commitments, and the absence of tangible, measurable progress in response to publicly di...

Google on Monday released out-of-band fixes to address three security issues in its Chrome browser, including one that it said has come under active exploitation in the wild. The high-severity flaw is being tracked as CVE-2025-5419 (CVSS score: 8.8), and has been flagged as an out-of-bounds read and write vulnerability in the V8 JavaScript and WebAssembly engine. "Out-of-bounds read and write in V8 in Google Chrome prior to 137.0.7151.68 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page," reads the description of the bug on the NIST's National Vulnerability Database (NVD). Google credited Clement Lecigne and Benoît Sevens of Google Threat Analysis Group (TAG) with discovering and reporting the flaw on May 27, 2025. It also noted that the issue was addressed the next day by pushing out a configuration change to the Stable version of the browser across all platforms. As is customary, the advisory is light on details regarding t...

A new malware campaign is distributing a novel Rust-based information stealer dubbed EDDIESTEALER using the popular ClickFix social engineering tactic initiated via fake CAPTCHA verification pages. "This campaign leverages deceptive CAPTCHA verification pages that trick users into executing a malicious PowerShell script, which ultimately deploys the infostealer, harvesting sensitive data such as credentials, browser information, and cryptocurrency wallet details," Elastic Security Labs researcher Jia Yu Chan said in an analysis. The attack chains begin with threat actors compromising legitimate websites with malicious JavaScript payloads that serve bogus CAPTCHA check pages, which prompt site visitors to "prove you are not [a] robot" by following a three-step process, a prevalent tactic called ClickFix . This involves instructing the potential victim to open the Windows Run dialog prompt, paste an already copied command into the "verification window"...

Would you expect an end user to log on to a cybercriminal's computer, open their browser, and type in their usernames and passwords? Hopefully not! But that's essentially what happens if they fall victim to a Browser-in-the-Middle (BitM) attack. Like Man-in-the-Middle (MitM) attacks, BiTM sees criminals look to control the data flow between the victim's computer and the target service , as University of Salento researchers Franco Tommasi, Christian Catalano, and Ivan Taurino have outlined in a paper for the International Journal of Information Security. However, there are several key differences. Man-in-the-Middle vs Browser-in-the-Middle A MiTM attack utilizes a proxy server that places itself between the victim's browser and the legitimate target service at the application layer. It needs some kind of malware to be placed and run on the victim's computer.  But a BiTM attack is different. Instead, the victim thinks they're using their own browser – conducting their normal on...