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Week in review: Malware delivery via Microsoft Teams, law firms under cyberattack, CVSS 4.0 is out
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US agencies warn of AI-powered attacks on Siemens industrial controllers
NSA, CISA, FBI, DOE, and EPA warn threat actors use AI-assisted scripts and snap7 libraries to access internet-exposed Siemens S7 PLCs in critical infrastructure sectors.
NSA, CISA, FBI, DOE, and EPA issued a joint advisory warning that threat actors combine open-source snap7.dll/python-snap7 libraries with AI-generated scripts to gain read/write access to Siemens S7-200 through S7-1500 PLCs over the S7comm protocol. Actors use Censys and ZoomEye to find internet-exposed devices and abuse default or weak credentials, with activity assessed as persistent reconnaissance and positioning for future write operations. Agencies urge device inventory, patching, removing PLCs from the internet, and hardening; the pattern resembles Iran-linked CyberAv3ngers targeting of Rockwell, Schneider, and Siemens PLCs.
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Microsoft Issues Security Fixes for 56 Flaws, Including Active Exploit and Two Zero
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Microsoft Fixes 149 Flaws in Huge April Patch Release, Zero
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⚡ Weekly Recap: Chrome 0-Day, Router Hijacks, Coder Supply Chain Attack and More
Weekly recap: actively exploited Chrome V8 zero-day, MikroTik RouterOS zero-day chain, Magento StyleSmuggler backdoor, and critical N-able N-central flaws.
Google patched an actively exploited Chrome V8 type confusion zero-day, CVE-2026-85046 (CVSS 8.8), the sixth exploited Chrome zero-day of 2026. CERT Polska warned of the MikroTrick exploit chain (CVE-2026-67276 and CVE-2026-86060, CVSS 9.2) giving unauthenticated full control of MikroTik RouterOS devices via SSH, observed since September 2. Sansec disclosed the StyleSmuggler Magento/Adobe Commerce zero-day used since September 4 to inject a Rust backdoor into online stores, while N-able patched three critical N-central flaws (CVE-2026-86206, CVE-2026-86207, and CVE-2026-86218, CVSS 10.0) with Huntress observing likely exploitation. Elastic and Morphisec also detailed RevStealer, an information stealer spread via game cheats and a fake Claude Desktop app.
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Risky Bulletin: BEC campaign steals €35 million from French notaries
Hackers stole over €35 million from 500+ French notary offices in a four-year BEC campaign; ANSSI spent two years helping evict the attackers.
A business email compromise campaign breached more than 500 French notary offices — about 7% of all French notaries per the Conseil Supérieur du Notariat — over four years, stealing more than €35 million by phishing initial access and silently modifying wire transfer details. France's cybersecurity agency ANSSI worked for two years behind the scenes to help notaries remove the persistent attackers, who had deep access; officials also feared hackers could issue fake notarized acts such as marriage certificates or forged real estate deals. No forged documents have been found so far, but notaries have added two-factor authentication and in-person requirements for banking details, and banks added extra checks in 2024. The newsletter also notes other incidents, including a $320 million Bitcoin extraction from Blockstream's Liquid Network and a JetBrains Cadence breach via TeamCity servers.
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NSA, FBI warns of hackers using AI-generated tools in attacks on critical infrastructure technology
NSA and FBI warn of an active campaign using AI-generated exploit scripts against Siemens S7 PLCs in critical infrastructure sectors.
NSA, FBI and other federal agencies issued an urgent advisory describing an active threat campaign targeting US-based Siemens S7 Series PLCs with AI-generated exploitation scripts disguised as legitimate monitoring tools. Actors use internet scanning to find exposed PLCs in energy, water, and manufacturing sectors, and may be preparing for operational effects. The advisory expands on July warnings of Iran-affiliated hackers targeting PLCs from Siemens, Schneider Electric, Rockwell Automation, and Allen-Bradley.
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Iran-Linked Hackers Target More US Water Infrastructure in New Jersey and Alabama
Iran-linked hackers hit water utilities in New Jersey and Alabama, bringing confirmed US water-infrastructure attacks to at least 12 states.
Iran-linked hackers attacked the Cape May Sewer Department and Woodbine Water Department in New Jersey and the Childersburg Water, Sewer and Gas system in Alabama on July 27, bringing confirmed US water-sector attacks to at least 12 states since late July. The intrusions targeted internet-exposed industrial control systems, including Rockwell Automation PLCs, with roughly 12 hours of impact in New Jersey and no impact on water quality or service. The FBI confirmed seven affected states by July 30, and CISA has urged utilities to remove PLCs from direct internet exposure. New York announced more than $9 million in grants to strengthen water-sector cybersecurity.
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⚡ Weekly Recap: Rogue AI Agents, Check Point Exploit, Slopsquatting, ClickFix Lures and More
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April Patch Tuesday Fixes Critical Flaws Across SAP, Adobe, Microsoft, Fortinet, and More
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U.S. CISA adds Apple, Rockwell, and Hikvision flaws to its Known Exploited Vulnerabilities catalog
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Over 60 Software Vendors Issue Security Fixes Across OS, Cloud, and Network Platforms
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Microsoft Fixes 63 Security Flaws, Including a Windows Kernel Zero
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Two New Windows Zero-Days Exploited in the Wild — One Affects Every Version Ever Shipped
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Microsoft Fixes 80 Flaws — Including SMB PrivEsc and Azure CVSS 10.0 Bugs
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⚡ Weekly Recap: BadCam Attack, WinRAR 0-Day, EDR Killer, NVIDIA Flaws, Ransomware Attacks & More
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Microsoft Patches 125 Flaws Including Actively Exploited Windows CLFS Vulnerability
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URGENT: Microsoft Patches 57 Security Flaws, Including 6 Actively Exploited Zero
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Microsoft’s Patch Tuesday Fixes 63 Flaws, Including Two Under Active Exploitation
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3 Actively Exploited Zero-Day Flaws Patched in Microsoft's Latest Security Update
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Microsoft Fixes 72 Flaws, Including Patch for Actively Exploited CLFS Vulnerability
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Microsoft Fixes 90 New Flaws, Including Actively Exploited NTLM and Task Scheduler Bugs
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Microsoft Issues Security Update Fixing 118 Flaws, Two Actively Exploited in the Wild
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Microsoft Issues Patches for 79 Flaws, Including 3 Actively Exploited Windows Flaws
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Microsoft Issues Patches for 90 Flaws, Including 10 Critical Zero
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