Open VSX Removes 77 Malicious Evil Twin Extensions Exfiltrating Developer Data

A cluster of 77 extensions on the Open VSX marketplace has been found to impersonate legitimate developer tools while transmitting information about the systems and development environments on which they were installed. The "evil twin" extensions were uploaded to the repository between July 26 an...

Claude Mythos 5 Tried to Backdoor a Real Open-Source Project in Testing, Then Vouched for Itself

An agent running Anthropic's Claude Mythos 5 spent 34 hours trying to get a malware dropper merged into a real open-source project during a cyber evaluation by the UK's AI Security Institute. When a bystander publicly warned that the code was malicious, the agent denied it, force-pushed a rewritt...

CISA Flags Langflow RCE, Tomcat, and N-central Flaws as Actively Exploited

The U.S. Cybersecurity and Infrastructure Security Agency CISA, on August 5, 2026, added three flaws to its Known Exploited Vulnerabilities KEV catalog, citing evidence of active exploitation in the wild. The list of vulnerabilities is as follows - CVE-2026-9198 CVSS score: 9.8 - A code injection...

QuickFox Supply Chain Attack Delivers FDMTP Backdoor via Trojanized Windows Installer

Cybersecurity researchers have disclosed what has been described as a "long-standing supply chain attack" on QuickFox, a virtual private network VPN and network acceleration tool designed for overseas Chinese users. According to Fortinet FortiGuard Labs, the supply chain attack has been ongoing...

Greatness PhaaS Adds Device Code Phishing to Bypass MFA and Steal Tokens

The commercial phishing-as-a-service PhaaS toolkit known as Greatness has become the latest crimeware solution to add support for device code phishing, a rapidly growing cyber threat that abuses the legitimate OAuth 2.0 Device Authorization Grant to bypass Multi-Factor Authentication MFA and seiz...

Keyv-Linked npm Worm Poisons Hundreds of Packages, Plants Claude Code and VS Code Hooks

A credential-stealing npm worm that first appeared in [email protected] spread beyond the Keyv and Cacheable namespaces into hundreds of packages across multiple organizations on August 4, 2026. SafeDep verified 353 poisoned versions across 79 package names in the npm registry. Its monitoring put the...

Fake Adobe and Zoom Updates Install ScreenConnect for Persistent Remote Access

Cybersecurity researchers have disclosed details of an active, multi-wave campaign that employs social engineering lures themed around Adobe and Zoom software updates, business document reviews, and system maintenance utilities to stealthily deploy Remote Monitoring and Management RMM programs li...

When Vibe Hacking Turns AI into the Junior Hacker Every Adversary Always Wanted

The cybersecurity industry has spent decades assuming that offensive capability scales with technical expertise. That assumption is starting to break. Security teams have long estimated risk by ranking attacker sophistication. Nation-state actors sat at one end. Organized criminal groups followed...

Google Deletes 3 ADK AI Workflows After Malicious GitHub Issue Could Trigger Privileged Agent

Google deleted three AI agent workflows from its Agent Development Kit ADK Python repository. Pillar Security showed that a public GitHub issue could manipulate a triage agent into triggering a privileged code-fixing agent. The researchers said the public agent could be prompt-injected into posti...

New cPanel Critical Flaw Could Let Hosting Customers Run SQL as Database Root

cPanel has patched a flaw that let an authenticated hosting customer execute SQL in the database's root context, crossing the privilege boundary between a cPanel account and the server's administrative database identity. It shipped in a targeted security release that closes two other routes past...

DOUBLECUP Uses ClickFix and Cached PNGs to Deliver CountLoader and DeviceManager RAT

A new Russian loader-as-a-service LaaS codenamed DOUBLECUP has been using ClickFix lures as a way to stage malware-laced PNG images in victims' browser cache and ultimately deliver CountLoader and a previously undocumented remote access trojan called DeviceManager. "The first stage drops a...

CISA Adds Exploited N-able N-central Flaw to KEV After Customer Compromises

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Monday added a high-severity security flaw impacting N-able N-central to its Known Exploited Vulnerabilities KEV catalog following reports of active exploitation in the wild. The vulnerability, tracked as CVE-2026-18577 CVSS score:...

18 Malicious npm Packages Deliver Cross-Platform RAT to Alibaba Tool Users

Cybersecurity researchers have discovered a new set of malicious npm packages that target users of Alibaba developer tools with a cross-platform remote access trojan RAT as part of a sophisticated, targeted software supply chain attack targeting Chinese-speaking environments. One of the packages ...

Google Password Manager Attacks Could Let Malware Hijack Passkey-Protected Accounts

Malware running as an ordinary user on a Windows machine can sign into a victim's passkey-protected accounts without a fingerprint, a PIN, or anything at all appearing on the victim's screen. Unit 42 detailed three attack paths against Chrome's Google Password Manager cloud authenticator, which i...

INC Ransomware Emerges as Dominant Actor Exploiting SonicWall SMA 1000 Flaws

The INC Ransomware operation has emerged as the "dominant threat actor" exploiting the recently disclosed security flaws in SonicWall Secure Mobile Access SMA 1000 series VPN appliances. In a report published over the weekend, Resecurity said it observed the INC Ransomware accelerating its activi...

⚡ Weekly Recap: Rogue AI Models, $88M Bitcoin Theft, Water-System Attacks and Dangling DNS Hijacks

This week kept coming back to permission. A model crossed a boundary. A wallet trusted bad randomness. Webmail kept an intruder around. Public systems, package feeds, hotel networks, and login flows all gave away more than intended. Some of it was clever. Most of it was just access left lying...

FOMO in the SOC: Where AI Platforms like Claude Actually Fit

AI is moving incredibly fast, and every security leader is feeling the pressure to keep up. AI platforms like Claude, Codex and Cursor are already helping security teams write detections, investigate alerts, summarize incidents, and automate repetitive work. The conversation has evolved from...

Chinese Threat Actor Uses Leaked DarkSword Kit to Deploy GHOSTBLADE on iOS

An unknown Chinese-speaking threat actor has been observed running a campaign targeting Apple iOS devices by leveraging a publicly leaked version of the DarkSword exploit kit. Attack surface management platform Censys said it identified the threat actor running more than 100 web properties, most ...

PNLD Breach Exposes U.K. Police and Government Contact Details on Dark Web

The Police National Legal Database PNLD has confirmed that police, government and customer contact information was compromised and published on the dark web. The data included names, organisations and work email addresses belonging to police officers, police staff, criminal justice professionals,...

Thermo Fisher Patches Flaw That Could Make DNA File Tampering Nearly Undetectable

Thermo Fisher Scientific has patched a flaw in select Applied Biosystems human identification software that could allow data files to be altered before analysis software loads them. The vendor's July 31 security bulletin says nearly undetectable changes to .fsa and .hid outputs could occur if...

N-able Says Attackers Take Over N-central Servers After Initial Fix Proves Incomplete

N-able said attackers exploited an authentication bypass in N-central to gain remote administrative access and reach the customer systems managed through those servers. Its first fix was incomplete. CVE-2026-18577 affects N-central builds prior to 2026.3.1.7. N-able shipped build 2026.3.1.7 on...

Hugging Face Diffusers Flaws Could Let Model Repositories Execute Arbitrary Code

Three high-severity security flaws have been disclosed in Hugging Face's Diffusers library that could allow crafted model repositories to stealthily execute arbitrary code on machines that load it, opening the artificial intelligence AI supply chain to security risk. "These vulnerabilities are...

Coldcard Hardware Wallet Flaw Linked to $70 Million Bitcoin Theft in 41 Minutes

An attacker drained 1,196 Bitcoin addresses in 41 minutes on July 30, taking 1,082.65 BTC worth about $70.2 million at the time. Galaxy Research mapped the sweep and tied it to a firmware flaw in Coldcard , the Bitcoin-only hardware wallet made by Canadian firm Coinkite. A March 2021 firmware...

Hackers Poison Adform Script to Swap Crypto Wallet Addresses Across Customer Sites

Attackers modified a JavaScript file served by advertising technology company Adform , turning it into a browser-side tool that rewrites cryptocurrency wallet addresses. Adform detected the incident on July 27, 2026, removed the malicious code, notified affected clients, and reported it to...

Adobe Campaign Classic CVSS 10.0 Flaw Could Run Code Without User Interaction

Adobe has released security updates to address a maximum-severity security flaw in Campaign Classic ACC, its enterprise-focused marketing automation platform, that could result in arbitrary code execution. The vulnerability, tracked as CVE-2026-48449 , carries a severity score of 10.0 on the CVSS...

Hijacked Hotel Wi-Fi Pushes Fake Updates to Deliver Surveillance Malware

A fake browser update served over hijacked hotel Wi-Fi has been used to deliver CornFlake , a remote access trojan RAT that can capture webcam images, microphone audio, and keystrokes, Microsoft said in its latest report. Researchers track the operation as CaptiveCrunch and attribute it to...

Suspected Chinese-Speaking Hackers Target Central Asian Governments With OctLurk and SilkLurk

A Chinese-speaking threat actor is suspected to be behind a fresh wave of cyber attacks targeting government organizations mainly located in Central Asia, including Afghanistan, Kyrgyzstan, Tajikistan, Uzbekistan, Kazakhstan, and the Syrian Arab Republic, since January 2025. These targeted...

HollowFrame Loader Deploys Matryoshka Backdoor in Spear-Phishing Attack on Law Firm

Cybersecurity researchers have shed light on a previously undocumented Go-based loader framework called HollowFrame and a Rust-based malware family tracked as Matryoshka. According to Blackpoint Cyber, the intrusion sequence begins with a spear-phishing message containing a link to an encrypted...

Cheap Android TV Boxes Pose as Phones and Turn Owners’ Broadband Into Proxies

Bitsight says some cheap Android TV boxes have shipped with apps that rewrite their hardware identity to mimic Samsung, Huawei, Xiaomi, or Vivo phones, then click ads on websites run by the same operators. Researchers named the operation Fuyao and attributed it to Zhejiang Fengwo IoT Technology...

Three Recent Chrome Releases Fix 1,442 Flaws, More Than Prior 23 Updates Combined

Google on Thursday announced that it fixed a whopping 1,072 security bugs in Chrome versions 149 and 150, surpassing the total number of flaws the company fixed across the prior 23 milestones combined. Both versions were released last month. In its latest patch for Chrome 151, released Wednesday,...

Researchers Report 84 Flaws in 4G and 5G Cores, Including a Session Hijacking Flaw

An academic study has disclosed a "widespread class" of security vulnerabilities impacting 4G and 5G core networks that, if successfully exploited, could trigger denial-of-service DoS attacks and even session hijacking, allowing an attacker to seize control of a user's network session. The findin...

6 Reasons Why Device Code Phishing is the Fastest-Growing Threat of 2026

Device code phishing - the abuse of the OAuth 2.0 device authorization grant to steal access tokens - has evolved from a niche red-team technique to an industrial-scale threat in under six months. Designed for input-constrained devices like smart TVs, printers, and so on, the device authorization...

Chinese Hacker Commands DeepSeek via Telegram to Launch Autonomous Attacks

Palo Alto Networks' Unit 42 says a Chinese-speaking threat actor used DeepSeek through the open-source Hermes Agent framework to launch attacks autonomously. After an initial Telegram instruction, the agent found internet-facing systems and selected public exploits. The researchers recovered no...

Anthropic Says Claude Mistook the Open Internet for a CTF and Breached Three Organizations

Anthropic on Thursday became the latest artificial intelligence AI company to reveal that three of its models, including Claude Opus 4.7, Mythos 5, and an unnamed research model, had breached three unnamed organizations during cybersecurity testing without its knowledge. The AI firm said the...

DPRK-Linked macOS Malvertising Uses Fake Updates to Deliver Crypto-Stealing Malware

Threat actors with ties to North Korea have been attributed to a sophisticated macOS malvertising campaign that involves redirecting users to fake web pages displaying a full-screen non-existent update sequence to deliver malware as part of a new iteration of the long-running Contagious Interview...

ThreatsDay: AI-Powered Hacking, 370 Chrome Flaws, SonicWall Attacks, DNS Hijacking + 22 More Stories

A lot of security still comes down to trusting the wrong screen. This week, that screen might be a login page, an install guide, a recruiter call, or a familiar service behaving slightly wrong. Behind it: reused credentials, exposed systems, quiet loaders, abused trust, and exploit paths that...

Azure Cosmos DB Flaw Exposed Platform-Wide Key That Could Access Any Database

A now-patched vulnerability in Azure Cosmos DB could have let an attacker escape the service's Gremlin query sandbox and obtain full read and write access to databases across customer tenants, according to Wiz. Wiz , which codenamed the chain CosmosEscape , said the exploit chain began with a...

Microsoft Copilot for Word Can Copy Hidden Prompts Into New Documents

Hidden instructions in a Word document can make Microsoft 365 Copilot rewrite figures in a report, then copy the same instructions into the finished file. Håkon Måløy disclosed the technique on July 28, 144 days after reporting it to Microsoft. In his proof of concept, the internally generated fi...

The Network Has Become the Control Plane for AI Security

Network firewalls are the workhorses of modern cybersecurity. They are trusted to protect the network, blocking malicious traffic and preventing intrusions and breaches. And for decades, network security teams have built controls around a relatively stable model: users connect to applications,...

Hackers Exploit AnySign4PC via Hacked Korean Sites to Install Backdoors Without Prompts

South Korean authorities and four security firms have disclosed a state-sponsored campaign that compromised trusted domestic websites. The attackers used those sites to exploit locally installed financial-security software and infect targeted visitors with SIGNBT or COPPERHEDGE backdoors. A...

SilverFox Targets Japanese Manufacturer with 3-Driver BYOVD Chain and ValleyRAT

The Chinese cybercrime group known as Silver Fox has been observed using new drivers as part of bring your own vulnerable driver BYOVD attacks targeting a Japanese organization in the industrial manufacturing sector to ultimately deliver ValleyRAT aka Winos 4.0 for persistent remote access. "In...

Russian Hackers Exploit Microsoft OWA Flaw to Keep Mailbox Access After Credential Rotation

The Russian threat actors recently linked to the exploitation of a now-patched vulnerability in Zimbra have been observed exploiting another vulnerability, this time in Microsoft Outlook Web Access OWA, to target U.S. and European government entities, as well as the telecommunications, financial,...

FCC Blocks New Foreign-Produced Robots and Power Inverters Over Cyber Risks

The Federal Communications Commission FCC added foreign-produced mobile robots and networked power inverters to its Covered List on July 28. The move generally prevents new models from receiving the equipment authorization required for import, marketing, or sale in the US. Previously authorized...

Amazon Links Debug and Chalk npm Hijack to North Korea’s Sapphire Sleet

Amazon has tied the September 2025 hijack of the npm packages debug and chalk to North Korea. For ten months, the incident sat in the public record as crypto theft: a maintainer phished through a lookalike npm domain and a wallet-draining script pushed into at least 18 packages carrying more than...

Cisco FMC Zero-Day Actively Exploited, Static Credentials Could Expose Sensitive Data

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Wednesday added a newly disclosed security flaw impacting Cisco Secure Firewall Management Center FMC Software to its Known Exploited Vulnerabilities KEV catalog, following reports of zero-day exploitation. The vulnerability,...

Critical Rails Flaw Could Let Unauthenticated Attackers Read Server Files via Image Uploads

Ruby on Rails has released fixes for a critical Active Storage vulnerability that could let unauthenticated attackers read arbitrary files from application servers through crafted image uploads. Tracked as CVE-2026-66066 CVSS score: 9.5, the flaw can expose the Rails process environment and secre...

Ruflo MCP Flaw Lets Unauthenticated Attackers Run Commands and Poison AI Memory

Cybersecurity researchers have flagged a maximum-severity security flaw in Ruflo, an open-source agent meta-harness for Anthropic Claude Code and OpenAI Codex, that could result in unauthenticated remote code execution. The vulnerability, tracked as CVE-2026-59726 CVSS score: 10.0, impacts all...

Three Critical VMware Flaws Allow Auth Bypass, Code Execution, and VM Escape

Broadcom has released security updates to address multiple security flaws impacting VMware ESX, vCenter, Workstation, and Fusion, three of which have been designated as critical in severity. The first of the three critical-rated flaws is CVE-2026-59309 CVSS score: 9.8, which has been described as...

Coordinated Cyberattack Targets 30+ Minnesota Water Systems as One Plant Goes Offline

A coordinated cyberattack targeted operational technology at more than 30 Minnesota community water systems on July 26 and 27, triggering a statewide cybersecurity response. Braham, Plymouth, South St. Paul and Maple Plain have publicly described a plant outage, communications failures or affecte...

Nine-Year Fraud Campaign Clones Russian Company Sites to Steal Advance Payments

Cybersecurity researchers have disclosed details of a large-scale fraud campaign that involves creating lookalike websites of major Russian companies with an aim to siphon funds from international firms for more than nine years. According to Russian cybersecurity vendor F6, the threat actors have...