Security Newsletter

Daily Security Briefing #325

DjediTech July 24, 2026 3 min read
Daily Security Briefing #325
Table of Contents

July 24, 2026 | Read Online

GRIDTIDE disrupted, AI training data poisoning exposed, and Cl0p ransomware affiliates targeting engineering environments…


Executive Summary

Cybersecurity threats continue to evolve with malicious actors adapting to disruptions. The recent GRIDTIDE campaign disruption highlights collaborative efforts between industry partners. Meanwhile, critical vulnerabilities in PTC Windchill have been exploited by Cl0p ransomware affiliates. Additionally, AI training data poisoning has become a growing concern as attackers inject malicious content into AI development pipelines.



Top Articles

Exposing the Undercurrent: Disrupting the GRIDTIDE Global Cyber Espionage Campaign Google Threat Intelligence Group and partners took action against UNC2814, a PRC-nexus cyber espionage group targeting international governments and telecommunications organizations. The campaign, tracked since 2017, disrupted dozens of nations across four continents. Google Cloud Blog

The Genie Coefficient: A New Metric for AI A new metric, the Genie coefficient, has been proposed to measure the gap between what an AI is asked to do and its unspoken assumptions about how it should accomplish tasks. This metric aims to address the limitations of current benchmarks in evaluating AI performance. Schneier

Cl0p Exploits PTC Windchill Zero-Day Cl0p ransomware affiliates are actively exploiting a critical zero-day in PTC Windchill and FlexPLM (CVE-2026-12569) to gain unauthenticated remote code execution, drop JSP webshells, and exfiltrate sensitive engineering data for double-extortion. CyberPress

New WARDEN Stealer Targets 330+ Apps and 200 Crypto Extensions A new malware-as-a-service (MaaS) offering, “WARDEN,” has emerged on cybercrime forums, pitching a Windows infostealer that blends credential theft, cryptocurrency hijacking, and payload delivery behind a single control panel. CyberPress

BlueNoroff Zoom Phishing Kit Profiles Crypto Wallets The North Korean threat actors behind the ClickFix-style campaigns have been found to operate an active phishing kit to impersonate videoconferencing platforms in social engineering campaigns designed to deliver malware. The Hacker News

Certighost Exploit Lets Low-Privileged Active Directory Users Impersonate a Domain Controller A working exploit has been published that lets a low-privileged Active Directory user obtain a certificate for a Domain Controller and authenticate as that machine, highlighting the vulnerability of domain controllers to exploitation. The Hacker News

Hermes AI Agent Used in Unattended “YOLO” Mode A threat actor used the open-source Hermes AI agent in unattended “YOLO” mode to automate post-exploitation activity during an alleged breach of Thailand’s Ministry of Finance. Bleeping Computer

Botnets Continue to Grow Despite Multiple Takedowns Roughly 1 in 4 compromised IPs are based in the United States, and botnets like IPIDEA have rebounded quickly, surpassing their pre-disruption footprint. CyberScoop


AI Transparency: This newsletter uses AI to curate, rank, and summarize cybersecurity content from leading industry blogs. All articles link directly to original authors. Executive summaries are AI-generated based on article content. I curate the sources and deliver the digest—the original authors deserve the credit for their excellent work.