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A new China-linked cybercrime group known as TA4922 has expanded its targeting focus to target European organizations in the U.K., Germany, Italy, and South Africa. These efforts have been complemented by a "rapid operational tempo" and a continually evolving malware arsenal comprising known families like ValleyRAT (aka Winos 4.0) and Atlas RAT (aka AtlasCross RAT), as well as previously undocumented tools called RomulusLoader and SilentRunLoader , according to Proofpoint. The enterprise security company is keeping tabs on the activity under the moniker TA4922, describing it as a Chinese-speaking threat actor largely targeting East Asia. TA4922 is assessed to share some level of overlap with Silver Fox , with the threat actor's tradecraft more focused on cybercriminal objectives than espionage. "The actor is likely financially motivated and focused on obtaining remote access to victim environments for financial gain, such as data theft, fraud, access resale...

Cybersecurity researchers have shed light on a macOS malvertising campaign codenamed Operation FlutterBridge that spreads a new backdoor called FlutterShell . According to Palo Alto Networks Unit 42, the campaign is said to be the next stage of a previously reported activity cluster dubbed JSCoreRunner (aka FileRipple ) in late August 2025. The cybercrime group behind the two attack chains is being tracked under the moniker CL-CRI-1089. The attackers are assessed to be active since at least 2023. "Built using the Flutter framework, FlutterShell infects targets with adware via malicious desktop applications," Unit 42 said . "In addition to its adware functionality, the payload possesses backdoor capabilities, including shell command execution and file system manipulation." Operations attributed to CL-CRI-1089 also include Recipe Lister and Calendaromatic , both of which fall under a broader designation known as TamperedChef (aka EvilAI ), an ongoing series ...

Cybersecurity researchers have flagged a large-scale operation that impersonates open-source and freeware projects to funnel unsuspecting users through a Traffic Distribution System (TDS) and deliver malware families like Remus Stealer, AnimateClipper, and the SessionGate framework. "The sites are well-designed and often look like legitimate project portals at a glance, sometimes referencing real upstream resources," Check Point security researcher Alexey Bukhteyev said in a breakdown of the campaign. "The deception is not in the page content alone, it's in what happens when a user interacts." "These pages load a CloudFront-hosted JavaScript staging layer that converts a click on a 'download' button/link into a handoff to a Traffic Distribution System (TDS). The TDS enforces strict gating: first-visit state, mandatory click confirmation, anti-bot/anti-analysis logic, VPN/datacenter filtering, and frequency capping." It's suspected t...

Unknown attackers spent at least five months inside the Outlook mailbox of a senior executive at a major global stock exchange, copying the inbox out in small, repeated batches and routing it through Dropbox and OneDrive so the traffic blended into normal cloud activity. Symantec and Carbon Black's Threat Hunter Team reported the campaign this week. This points to espionage, not a money grab: Symantec said the commands indicate intelligence collection, not theft for profit. Neither the executive nor the exchange was named. The value is plain enough: an exchange executive's inbox can hold non-public listing details, enforcement matters, deal terms, market-moving plans, plus the executive's calendar and contacts. Five months of quiet access handed the attacker a detailed read on the executive's dealings and where the organization was heading, without needing broad access to other business systems. The first malicious activity showed up on October 10, 2025. By th...

The U.S. Department of Justice (DoJ) on Wednesday announced the results of a sweeping action undertaken by government authorities and private sector companies to combat cyber-enabled and cryptocurrency fraud targeting Americans. The "Disruption Week" operation began May 18, 2026, leading to the takedown of millions of social media, email, and internet access accounts used by transnational cybercrime groups in Southeast Asia to defraud victims. Private sector entities voluntarily froze over $3.8 million in cryptocurrency involved in the laundering of funds stolen from Americans. "Cyber-enabled and crypto investment fraud is devastating Main Street Americans, wiping out life savings and preying on some of our most vulnerable citizens," said U.S. Attorney Jeanine Ferris Pirro for the District of Columbia. The efforts are part of an ongoing U.S. government initiative called Scam Center Strike Force, which aims to dismantle transnational criminal organizations ru...

A single poisoned notification from WhatsApp, Slack, SMS, Signal, Instagram, or Messenger could have hijacked Google Gemini's voice assistant on Android and made it open a victim's connected windows, fake a message from their boss, push the phone into a Zoom call, or quietly poison its long-term memory. No malicious app on the phone is required. The assistant just had to treat a hostile notification as useful context. The research, published by SafeBreach's Or Yair, follows the team's earlier " Invitation Is All You Need " work, which pulled off similar tricks through malicious Google Calendar invites. After that, Google hardened Gemini against indirect prompt injection. Yair found a way around the new defenses. Google has since patched it, SafeBreach lists no CVE for the issue, and there is no evidence that the technique was ever used in the wild. On Android, Gemini's Utilities feature can read and reply to your notifications, including ones ...

Cybersecurity researchers have disclosed a one-click attack via Microsoft Visual Studio Code (VS Code) that makes it possible to steal a user's GitHub token. "Just by clicking a link, it's possible for an attacker to steal a GitHub token that can read and write to your repos, including private ones," security researcher Ammar Askar said . GitHub supports a feature called GitHub.dev that runs as a lightweight web-based source code editor in the web browser's sandbox by launching a VS Code environment. It allows users to send pull requests and make commits. "This functionality is achieved by github.com POSTing over an OAuth token to github.dev that allows it to interact with GitHub on your behalf," Askar said. "The token is not scoped to the particular repo you interacted with, meaning it has full access to every other repo that you have access to." In a nutshell, the vulnerability allows attackers to install malicious VS Code extensio...

Redis has patched a use-after-free in its blocking-client code that lets an authenticated user run arbitrary OS commands on the machine hosting the database. The flaw was found by an autonomous AI tool built to hunt bugs in large codebases. Tracked as CVE-2026-23479 , the flaw was introduced in Redis 7.2.0 and remained in every stable branch until the May 5 fixes, unnoticed for over two years. NVD rates it 8.8 under CVSS 3.1; Redis lists it as 7.7 under CVSS 4.0. It was reported by Team Xint Code, and a complete technical  write-up is now public. The cloud footprint makes this worse. Wiz's analysis, published with the exploit writeup, puts Redis in a large majority of cloud environments, with most of those instances running without a password. The exploit needs an authenticated session, but in a default deployment, the default user already holds every privilege the chain requires. The flaw lives in unblockClientOnKey() in src/blocked.c , which fires when a key event wakes ...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical flaw impacting Mirasvit Cache Warmer, a popular Magento full-page cache extension, to its Known Exploited Vulnerabilities (KEV) catalog, following reports of active exploitation in the wild. The vulnerability, tracked as CVE-2026-45247 (CVSS score: 9.8), is a case of deserialization of untrusted data that could be exploited to execute arbitrary PHP code on an affected server. "Mirasvit Full Page Cache Warmer contains a deserialization of untrusted data vulnerability that could allow unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie," CISA said . The shortcoming impacts all versions of the extension prior to version 1.11.12. Patches for the were released on May 25, 2026. The addition of CVE-2026-45247 to the KEV catalog comes days after Sansec said the PHP object injection vulnerability could...

Cybersecurity researchers have flagged a new malspam campaign that makes use of Google's DoubleClick domain as a way to evade detection and ultimately deliver a remote access trojan (RAT) named DesckVB RAT . "Before the victim ever reaches attacker-controlled infrastructure, the lure routes through DoubleClick, a legitimate Google-owned domain that many security tools are less likely to treat as suspicious," Huntress researchers Anna Pham and Adam Mooney said in a report shared with The Hacker News. "From there, the victim is passed into a malspam kit that personalizes itself on the fly using the victim's email address, dynamically pulling in company branding and location details to make the page feel convincing without requiring the operators to handcraft a lure for each target." What makes this attack noteworthy is that it eliminates the need for having a bespoke kit for each targeted organization, thereby making these operations more scalable and ...

Assume the breach. Zero-days keep shipping, AI is writing exploits faster than anyone patches, and "patch everything in time" stopped working years ago. Stop betting the org on winning that race. You don't control which bug lands. You control what it can reach once it does. That is a question about the shape of your network, and most teams have the shape wrong. HD Moore, creator of Metasploit and now CEO of runZero, spends the session showing you that shape from the attacker's side. Save your seat for a LIVE session , or register, and we will send you the recording. The segmentation you think you have The comfortable assumption: critical systems sit behind a firewall or off on their own segment, so a foothold over here cannot become a disaster over there. Call it the segmentation illusion. It holds until someone maps the network for real. Then the seams show up. A device wired into two networks at once, quietly bridging the zones you meant to keep apart. Co...

A development flag left switched on in production builds of several Microsoft 365 Android apps disabled the check that limits account-token sharing to trusted Microsoft apps. Any other app on the same phone could ask for the signed-in user's token and get it, then read email, open files, browse the calendar, and send messages as that user. No password, no login screen, no permission prompt. Microsoft has patched it, and if you run Microsoft 365 apps on Android, update them. The bug, which Enclave calls FlagLeft , hit Word, PowerPoint, Excel, Microsoft 365 Copilot, Microsoft Loop, and OneNote, six apps with billions of downloads between them. Teams shipped with the same flag set to false and were not affected, which Enclave reads as a slip rather than a design. Microsoft 365 apps share account access on purpose, so signing into Word means you do not sign in again for PowerPoint. The handoff is supposed to verify who is asking and turn away anything that is not a trusted Mi...