IT security headlines, curated.
What's happening across cybersecurity and small-business IT — pulled from a few trusted sources, refreshed hourly. Click through to read at the source.
CISA: Ransomware gangs now exploiting critical TeamCity flaw
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned federal agencies on Wednesday that ransomware gangs are now also exploiting a critical JetBrains TeamCity vulnerability patched in July. [...]
OpenAI hacked Australian Medicare govt site, probed data providers
OpenAI agents targeted public data providers in multiple countries, probing some for vulnerabilities and exploiting a security weakness in an Australian government portal while performing information-retrieval tasks as…
Microsoft fixes bug that broke Windows File History backup feature
Microsoft has fixed a known issue that breaks the built-in File History backup feature on some Windows systems after installing the September 2026 security updates. [...]
OpenAI Agent Bypassed Australian Medicare Portal Controls to Access Non-Public Files
An AI agent on an internal OpenAI research task bypassed access controls on an Australian government Medicare statistics portal in June, Prime Minister Anthony Albanese said. The portal publishes aggregate figures, such…
TeamFiltration Campaign Compromises Seven Microsoft 365 Accounts Using Default Passwords
Cybersecurity researchers have disclosed details of an active TeamFiltration campaign codenamed UNK_CondorFiltration that has targeted over 5,700 accounts across 28 Microsoft 365 tenants. According to Proofpoint, the…
Attackers Exploit WordPress CVE-2026-87902 Within Hours of Disclosure
Threat actors have begun to actively exploit a critical security flaw in WordPress within hours of public disclosure. The vulnerability in question is CVE-2026-87902 (CVSS score: 9.2), which could allow an…
Placeholder domain used in dev docs now serves ClickFix attacks
The "third-party.com" domain, commonly used as a placeholder in developer documentation and code examples, is serving a fake Cloudflare verification page that attempts to trick Windows users into executing PowerShell…
New RemControl Android banking malware targets users in Europe and Canada
A new Android malware-as-a-service (MaaS) platform called RemControl is targeting users through malvertising campaigns that impersonate the TVTap IPTV application. [...]
Check Point warns of hackers exploiting Security Gateway VPN RCE flaw
Cybersecurity company Check Point has confirmed active exploitation of CVE-2026-85102, a pre-authentication remote code execution (RCE) vulnerability in the VPN certificate-handling functionality of its Security Gateway…
Hackers start exploiting critical WordPress flaw for code execution
Threat actors have moved from probing WordPress sites vulnerable to CVE-2026-87902 to exploiting the flaw to write files to disk that execute shell commands when accessed. [...]
Attackers Use Malicious Terraform Providers to Deliver Go Malware via HashiCorp Registry
Cybersecurity researchers have disclosed Go-based malware distributed via two Go Modules and two Terraform providers, marking the first time threat actors are using the centralized repository hosted by HashiCorp as a…
A Leaked GitLab Issue Email Address Lets Anyone Push Code and Run CI Jobs as You
The private email address GitLab gives you for filing issues by email is a credential. Anyone who gets it can email a patch that GitLab commits in your name, to any branch you can push to, including main, and can start…
Malicious AI agents steal 600K credit cards, infect 100+ sites with skimmers
A financially motivated threat actor is using open-source AI agent frameworks to attack hundreds of online retailers at scale, stealing more than 600,000 credit card records. [...]
MikroTrick Chain Let Attackers Take Over MikroTik Routers Without a Password or SSH Key
Two MikroTik RouterOS SSH vulnerabilities chained together let attackers take full administrative control of Internet-exposed routers without a password, SSH key, or completed authentication. The chain, which CERT…
InfraTrust report warns network management systems under attack
Attackers are increasingly targeting the management systems used to control enterprise infrastructure, with several critical vulnerabilities actively exploited before or shortly after vendors disclosed them. [...]
This Windows Malware is Built to Let Up to Four AI Models Vote on Its Next Move
A Windows malware called CLOSEDQUORUM is built to take orders from a vote of up to four AI models instead of an attacker's server, Cisco Talos said on September 22. The models can choose to steal Windows credentials,…
How One Kubernetes YAML Can Hand Over a GCP Organization
A Kubernetes user with limited permissions can potentially gain control of an entire Google Cloud organization by exploiting the authority granted to Google Kubernetes Config Connector. Varonis explains how this…
Compromised MemTensor Packages Deliver sckit Credential Stealer via npm and PyPI
Unknown threat actors have managed to compromise two legitimate MemTensor packages across the npm and Python Package Index (PyPI) repositories to push a platform-specific Go-based implant dubbed sckit designed for…
Arista patches actively exploited VeloCloud Orchestrator zero-day
Arista Networks has released security patches for a zero-day flaw that is being actively exploited and affects VeloCloud Orchestrator (VCO) On-Prem deployments. [...]
New cPanel Flaw Lets a Hosting Account Run Code as Root, Take Full Server Control
A flaw in cPanel's CalDAV and CardDAV service lets anyone with a cPanel hosting account run code as root and take "full control of the server," the company said on September 22. A second bug in the WP Toolkit plugin,…
545 Hackers Tested It First. Now XRanges for AI Scores Your Security Agent
Autonomous security agents are getting good at finding bugs. Nobody has a good way to measure how good. Point one at a realistic target and what comes back is a report the agent wrote about itself: confident prose, a…
Anthropic and OpenAI Models Still Attempt Restricted Actions in Safety Tests
Anthropic and OpenAI on Tuesday announced new models, with both artificial intelligence (AI) companies noting that they are continuing to invest in improving alignment to combat risky behavior. Opus 5.5, per Anthropic,…
Microsoft: September Windows updates break Always On VPN connections
Microsoft warned that the September 2026 security updates may also break Always On VPN connections on some Windows 11 systems. [...]
Exploit Released for Unpatched Ubuntu Linux Flaw Enabling Host-Root Container Escape
A use-after-free in the Linux kernel's AF_UNIX socket subsystem can be used to escape a container and gain root on the host, security firm DepthFirst said in research published September 22. The flaw, tracked as…
F5 Patches Critical BIG-IP APM Zero-Day Exploited for Unauthenticated RCE on OAuth Servers
Attackers are exploiting a critical flaw in F5 BIG-IP Access Policy Manager (APM) that lets them run code on a BIG-IP system without logging in, F5 says. The flaw, CVE-2026-94127, affects only systems in which APM…
Chinese Hackers Exploit Chrome-Windows Zero-Day Chain to Deploy CLEANGULP Malware
A Chinese threat actor codenamed UTA0565 has been observed exploiting the recently disclosed Google Chrome-Microsoft Windows exploit chain as zero-days through fake websites. The attacks, detected on September 3 and 4,…
Ryuk ransomware member sentenced to 24 months in prison
An Armenian man was sentenced to 24 months in prison and 3 years of supervised release for hacking U.S. companies and encrypting their systems in Ryuk ransomware attacks. [...]
F5 patches BIG-IP APM zero-day flaw exploited in RCE attacks
F5 has released security updates to address a critical BIG-IP APM zero-day vulnerability being exploited in remote code execution attacks. [...]
Critical Next.js ImageResponse Flaw Can Lead to Server Code Execution via Crafted SVG Input
A new security vulnerability in Next.js could allow attackers to run code on a server via ImageResponse, the feature that generates Open Graph and other social preview images, Vercel said. The risk applies when an app…
ShinyHunters Claims FBI Breach, Says It Stole Data on Agents and Job Applicants
The cyber extortion group known as ShinyHunters on Tuesday claimed it had breached the U.S. Federal Bureau of Investigation and stolen data belonging to current and former employees at the agency. "We have compromised…
Rogue external MFA providers can steal passwords during logins
Security researchers developed an attack that lets hackers with privileged access register a rogue external MFA provider that steals users' passwords during legitimate login attempts. [...]
Check Point Warns of Management Server Zero-Day Exploited in Targeted Attacks
Attackers exploited a previously unknown flaw in Check Point's Security Management Server in a handful of targeted attacks on July 23, the company said. The flaw, CVE-2026-93616, allows an attacker who can access the…
WordPress Issues Patch for Critical Flaw That Can Enable Code Execution on Some Servers
WordPress has fixed a critical flaw in its core software that lets an attacker with no account make a site load a PHP file from outside its theme folders. On some servers, that can go further, allowing the attacker to…
Malicious npm Package Poses as Twilio Bug-Bounty Probe, Can Exfiltrate Credentials
Cybersecurity researchers have disclosed details of a malicious npm package named "tw-pkgprobe-7731" that masquerades as a security tool targeting developers integrating Twilio into their applications, while stealthily…
Microsoft Takes Down EvilTokens Device-Code Phishing Service Tied to 12,000 Inbox Compromises
Microsoft on Tuesday announced the takedown of the EvilTokens device code phishing service that it said used artificial intelligence (AI) "at every step of the attack chain." The action, carried out with authorization…
Critical Bifrost AI Gateway Flaw Lets Attackers Run Commands Without Credentials
A critical vulnerability in Bifrost, an open-source AI gateway that routes requests to more than 20 LLM providers, allows an unauthenticated attacker to run arbitrary commands on the gateway server with a single HTTP…
Researcher Drops BigDiskBuster Zero-Day PoC That Blocks Microsoft Defender Updates
A zero-day proof-of-concept tool that stops Microsoft Defender from installing platform and signature updates by filling all available disk space was published on GitHub on September 19. The tool, called BigDiskBuster,…
AI Agents Are Rewriting the Rules of Lateral Movement
Security teams have spent decades asking whether an identity has too much access. AI agents raise a harder question: how can we determine which paths an autonomous system can discover, given the access it already has? A…
New CVSS 10.0 VeloCloud Orchestrator Flaw Actively Exploited in Certificate-Based Setups
Attackers are exploiting a new flaw in on-premises VeloCloud Orchestrator (VCO), the server that manages the Edge devices in a VeloCloud SD-WAN, Arista said on September 22. The flaw, tracked as CVE-2026-93952, may…
DORA Year Two: Can Your SOC Actually See the Attack?
When the Digital Operational Resilience Act (DORA) became enforceable across the European Union in January 2025, it triggered an administrative sprint. Financial entities spent the first year establishing risk…
New Linux Kernel Flaw Gives ARM64 KVM Guests Read-Write Access to Host Memory
A new flaw in the Linux kernel's KVM virtualization code for ARM64 processors can leave a freed piece of host memory exposed to a guest virtual machine on hosts with nested virtualization enabled. The bug, tracked as…
SharePoint Flaw Initially Listed as Spoofing by Microsoft Enables Authenticated RCE
A SharePoint Server vulnerability that Microsoft initially classified as a spoofing flaw with a CVSS score of 6.5 actually enables authenticated remote code execution, according to full technical details published today…
Malicious npm Package indexed-btree Hid Its Loader in Runtime Code Before Removal
A malicious npm package named "indexed-btree" has been observed hiding its malicious behavior within application code rather than using lifecycle scripts, indicating that threat actors are likely shifting tactics in…
SideCopy Broadens India Targeting to Academia With ReverseRAT Spear-Phishing
The threat actor known as SideCopy has been observed using spear-phishing lures to target academic institutions in India, expanding their strategic focus beyond government entities. "SideCopy campaign operations…
One Hidden Meta Muse Setting Could Let Attackers Turn the AI Assistant Into a Backdoor
Malware already running on a Mac can quietly take over Meta's Muse assistant and use the broad access its owner granted the app, security researcher Patrick Wardle has shown in a proof-of-concept released on September…
WordPress Comment2Shell Flaw Can Turn Anonymous Comment XSS Into RCE via Admin Session
A new flaw in WordPress core let an anonymous visitor leave a comment that planted a hidden script on the page. If a logged-in administrator later opened that page, the script could run code on the site's server.…
Zyxel and Veeam Flaws Under Active Exploitation With Command and SYSTEM Access
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a now-patched security flaw impacting Zyxel GS1900 series switches to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence…
Fake LastPass Authenticator Installer Abuses Microsoft-Signed Driver to Kill Antivirus and EDR
A fake LastPass Authenticator installer offered on GitHub installs a Windows kernel driver that shuts off antivirus and other security software before a password stealer runs if a victim downloads and runs it,…
Contagious Interview Campaign Compromises 30,000 Devices, Steals $10.71M in Crypto
The North Korean threat actors behind the Contagious Interview campaign have compromised at least 30,000 devices located in more than 100 countries and siphoned funds or account credentials from over 7,000…
Google Fined €403 Million Over GDPR Violations Tied to Location Data
Google has been fined €403 million for breaking the EU's data protection law, the GDPR, in the way three of its features handled people's location data from May 2018 to February 2020. Ireland's Data Protection…
⚡ Weekly Recap: Cisco 0-Day, AI Agent RCE, ClickFix Attacks, ClickFix Surge, and Browser Hijacks
A browser. A plugin. A package. A login screen. Normal stuff. That is basically the problem this week. The trouble keeps showing up inside things people already trust: code that takes a bad turn, old payloads coming…
TASK#STOMP PowerShell Backdoor Steals Documents, Wi-Fi Passwords, and Clipboard Data
Cybersecurity researchers have disclosed details of a new campaign dubbed TASK#STOMP that delivers a PowerShell backdoor designed to harvest sensitive data from compromised hosts. The backdoor "automatically harvests…
ClickFix Lures Deploy ChainScript RAT Using Polygon to Rotate C2 Infrastructure
Threat actors are leveraging ClickFix-like lures to deliver a previously undocumented remote access trojan (RAT) called ChainScript. "ChainScript has appeared under multiple build names, including ComponentTask33,…
Jade Sleet Linked to Indian IT Provider Breach With FLATROOF and ROOFDECK Backdoors
The North Korean threat actor known as Jade Sleet has been attributed to the compromise of an India-based "much smaller organization" in the information technology (IT) services industry, once again highlighting how the…
Claude Opus 5 Helped Researchers Take Over OpenAI Staff Accounts via Chained Flaws
Three researchers at the security firm Hacktron used Anthropic's Claude Opus 5 to chain two flaws and take over the ChatGPT and Codex accounts of several OpenAI employees, then reach an internal OpenAI code repository.…
Can You Prove a New CVE Is Exploitable Before Attackers Do? Learn How in This Webinar
A new CVE drops. Your scanner finds it. The severity score looks ugly. But that still does not answer the question that matters: Can it actually be exploited in your environment? Mythos-class AI is compressing the time…
Identity Visibility in 2026: The Foundation of Identity Security
Identity visibility is a starting point for modern identity security, because stolen and misused credentials are among the most frequently reported initial access vectors in breach research, including Verizon's annual…
SolarWinds Patches ARM Hard-Coded Key Flaw Enabling Unauthenticated RCE
SolarWinds has released security updates to address a high-severity flaw in Access Rights Manager (ARM) that, if successfully exploited, could lead to an unauthenticated remote code execution vulnerability. The…
Critical Pre-Auth RCE in Orkes Conductor Workflow Platform Exploited in the Wild
A critical vulnerability impacting Orkes Conductor is being actively exploited in the wild, according to Fortinet. The vulnerability in question is CVE-2026-58138 (CVSS v3.1 score: 9.8/CVSS v4 score: 9.3), which relates…
Google Gemini Broke Into Real Company Systems After Security Test Domain Mix-Up
Google's Gemini model has become the latest artificial intelligence (AI) system to access the internet and break into other companies during a cybersecurity evaluation. The development was first reported by The Wall…
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