Security news
The latest breaches, vulnerabilities, and threat research from trusted security news sources — refreshed throughout the day, with links to the original reporting.
[Virtual Event] Cybersecurity Outlook 2027
ShinyHunters claims FBI hack, data theft in PeopleSoft zero-day breach
The ShinyHunters extortion gang claims it breached FBI systems using a new Oracle PeopleSoft zero-day vulnerability, gaining access to internal services and stealing sensitive data on employees and job applicants. [...]
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 server's web service to run scripts on it without logging…
New ClosedQuorum Windows malware uses AI for attack decisions
A new Windows malware named ClosedQuorum uses Google Gemini, DeepSeek, Qwen, and Mistral AI models to autonomously determine the actions to take during post-compromise stages of an attack. [...]
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 run their own code. The fix shipped on September 22 in…
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 attempting to harvest sensitive data. The package, named…
Shai-Hulud Attack Nips Cyber-Firm CrowdSec's GitHub Data
Threat actors stole 170 private repositories using an OAuth token stolen from a former employee's computer through the TanStack npm supply chain attack.
Reducing shadow IT visibility gaps with Wazuh
Shadow IT can leave security teams unaware of unmanaged endpoints, unauthorized software, and other assets that fall outside existing monitoring. Wazuh explains how endpoint inventory, agentless monitoring, and centralized analysis can help organizations identify and reduce…
Amid Ongoing Rogue Incidents, Debate Over AI Safety Gets Real
As more reports of misalignment incidents underscore AI risks, large AI labs, regular businesses, and even nations are searching for better ways to keep control and be secure.
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 from the U.S. District Court for the Eastern District of…
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 request. The flaw, tracked…
Check Point warns of Management Server zero-day exploited in attacks
Check Point Software released emergency hotfixes to address a critical Security Management Server vulnerability that could let attackers run arbitrary scripts. [...]
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, has no patch, no CVE, and no Microsoft advisory.…
EvilTokens PhaaS disrupted after compromising 12,000 Microsoft accounts
The EvilTokens platform that compromised more than 12,000 Microsoft accounts at over 10,000 organizations has been disrupted in an effort led by Microsoft's Digital Crimes Unit (DCU). [...]
Webinar tomorrow: Inside real-world Google Workspace breaches
Tomorrow's webinar examines real Google Workspace breaches involving social engineering and malicious OAuth applications, from initial access through the critical first hours of incident response. Learn which security controls and response decisions can make the greatest…
D-Link warns of max severity zero-day bug in DIR-822A routers
D-Link warned customers of a maximum-severity vulnerability (CVE-2026-86296) with public proof-of-concept (PoC) exploit code and no patch, affecting legacy DIR-822A dual-band Wi-Fi routers. [...]
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 person may try several ways to complete a task. 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 allow a remote attacker with no login access to privilege…
More Than a Third of Industrial Orgs See Cybersecurity Risk as a Top Obstacle to Growth, Study Finds
Industrial companies are increasing cybersecurity investment as connected operations, AI adoption, and IT/OT convergence expand operational risk.
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 governance, assessing third-party service providers, updating…
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 CVE-2026-89775, allows a guest to read and write host…
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 by Viettel Cyber Security researcher Dinh Ho Anh…
New Windows Defender zero-day blocks Microsoft antivirus updates
Over the weekend, security researcher Abdelhamid Naceri (also known as Nightmare Eclipse) released another Microsoft Defender zero-day exploit that blocks antivirus updates. [...]
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 response to recent security controls. "Indexed-btree is a…
CISA orders feds to patch Zyxel flaw exploited for data theft
Attackers are now actively exploiting a high-severity vulnerability in Zyxel GS1900 series switches, according to the U.S. Cybersecurity and Infrastructure Security Agency (CISA). [...]
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 typically initiate through spear-phishing campaigns that leverage…
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 21. It works by changing a hidden setting so that…
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. WordPress fixed the flaw, tracked as CVE-2026-93485 and…
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 of active exploitation. The vulnerability, tracked as…
How AI Agents Can Trigger Runaway Costs for Enterprises
Unbounded consumption is an issue that OWASP currently ranks sixth in its Top 10 for LLM Applications, and it could be an extremely costly one.
BigCommerce alerts merchants of data breach linked to Ribon apps
Ecommerce platform BigCommerce has alerted multiple merchants to data breaches after attackers compromised credentials for third-party Ribon applications and used them to inject malicious scripts into online stores. [...]
CISA alerts of active exploitation of three Linux kernel flaws
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that hackers are exploiting three Linux kernel vulnerabilities, one of them rated critical. [...]
ShinyHunters Hacked Clop. Now What About Clop's Victims?
ShinyHunters defaced Clop's Dark Web site and claims to have stolen victim data, potentially exposing organizations that paid ransoms to renewed extortion attempts.
Cybercriminals Are Hiding New Malware in Torrents for Popular Films
Victims have been identified in Africa, including in Kenya and Uganda.
WordPress Click2Shell flaw lets hackers execute PHP on the server
Technical details and a proof-of-concept exploit have been published for a new WordPress cross-site request forgery (CSRF) vulnerability dubbed 'Click2Shell' that affects the platform's Core component. [...]
Microsoft to retire Microsoft 365 Companion apps in December
Microsoft will retire the Calendar, People, and Files Microsoft 365 companion apps on December 16 and has asked admins to remove them from managed devices. [...]
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, researchers at LastPass and Delphos Labs said on September 17.…
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 cryptocurrency wallets, according to a new joint cybersecurity advisory.…
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 Commission (DPC), Google's lead regulator in the EU, also…
Google fined €403 million over location data privacy violations
Ireland's Data Protection Commission (DPC) has fined Google €403 million ($463M) for multiple GDPR violations related to processing users' location data. [...]