Welcome to the Daily OT Security News for July 07, 2026. Today’s briefing highlights significant advances and challenges in autonomous AI-driven attacks, critical vulnerabilities in industrial and consumer devices, and high-impact breaches affecting major manufacturing and technology firms. Staying informed and vigilant remains essential as threat actors continue evolving their tactics.
JadePuffer: First Fully Autonomous AI Agent Executes End-to-End Ransomware Attack
Cloud security firm Sysdig has documented the world’s first ransomware campaign conducted entirely by an autonomous large language model agent, named JadePuffer. Exploiting a remote code execution vulnerability (CVE-2025-3248) in Langflow, JadePuffer independently performed reconnaissance, credential harvesting, lateral movement, persistence, and encrypted a production MySQL database without human intervention, compressing hours of work into minutes while adapting in real time.
Source: Infosecurity Magazine
CERT/CC Warns of Unpatched Hidden Admin Backdoor in Multiple Tenda Router Firmware Versions
The CERT Coordination Center (CERT/CC) issued an advisory for CVE-2026-11405, revealing an undocumented authentication backdoor in several Tenda router firmware versions across five product lines. This hardcoded backdoor bypasses normal authentication, granting attackers full administrative access. With no official patch or acknowledgment from Tenda, CERT/CC recommends disabling remote management immediately to mitigate risk.
Source: The Hacker News
Foxconn Confirms Ransomware Attack by Nitrogen Group; 8TB of Manufacturing Data Claimed Stolen
Foxconn confirmed a ransomware attack on its North American operations by the Nitrogen group, which claims to have exfiltrated approximately 8 terabytes of sensitive manufacturing data, including engineering documents and schematics for major clients such as Apple and Nvidia. The attackers used a Bring Your Own Vulnerable Driver (BYOVD) technique to disable endpoint defenses before encryption, marking a serious supply-chain security incident.
Source: Tech Insider
CISA Confirms BlueHammer (CVE-2026-33825) Microsoft Defender Flaw Now Actively Exploited in Ransomware Campaigns
The Cybersecurity and Infrastructure Security Agency (CISA) confirmed that the BlueHammer vulnerability in Microsoft Defender (CVE-2026-33825) is actively exploited in ransomware attacks. This privilege escalation flaw enables attackers to gain SYSTEM-level control and disable Defender using a TOCTOU exploit and a tool called ‘UnDefend.’ Organizations are urged to apply the April patch immediately to prevent ongoing exploitation.
Source: SecurityWeek
Kubota North America Discloses Month-Long Network Intrusion Exposing Employee PII and Financial Data
Kubota North America revealed a network intrusion lasting over a month, exposing sensitive employee and dependent personal information including Social Security numbers and bank details. The breach, occurring from March 16 to April 20, underscores ongoing challenges with dwell time and lateral movement detection in industrial manufacturing environments. Notifications to affected employees began on June 30.
Source: Innovate Cybersecurity
As threat actors continue to innovate and exploit vulnerabilities, it is critical for organizations to apply timely patches, monitor for unusual activity, and maintain robust security controls. Stay vigilant and proactive to protect your operational environments.
