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John Marcelli is a staff writer for the CISO Brief, with a passion for exploring and writing about the ever-evolving world of technology. From emerging trends to in-depth reviews of the latest gadgets, John stays at the forefront of innovation, delivering engaging content that informs and inspires readers. When he's not writing, he enjoys experimenting with new tech tools and diving into the digital landscape.

Summary Points Targeted Attacks: The hacking group Scattered Spider, also known as UNC3944, has been actively targeting VMware vSphere environments to gain control of hypervisors, posing significant threats to organizations, especially in the retail and insurance sectors. Social Engineering Tactics: Scattered Spider employs sophisticated social engineering techniques to manipulate IT help desks for password resets, allowing them to escalate privileges and access critical systems like Active Directory and vSphere. Methodical Intrusion: Their attack strategy consists of five phases, enabling them to secure complete control of hypervisors, extract sensitive data, sabotage backups, and deploy ransomware quickly, often completing these steps within…

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Top Highlights Law Enforcement Action: The BlackSuit ransomware group’s Tor-based leak site has been seized as part of Operation Checkmate, an international law enforcement effort. Group Overview: BlackSuit, active since 2023 and a rebrand of the Royal ransomware, targeted diverse industries, affecting around 200 victims by July 2025, with ransom demands exceeding $500 million. Targeting Techniques: BlackSuit exploited both Windows and Linux systems, particularly VMware ESXi servers, to rapidly encrypt files and utilize stolen data for extortion. Potential Rebranding: A recent analysis by Cisco Talos suggests that the newly emerged Chaos ransomware may be a rebranding of BlackSuit, sharing similar…

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Fast Facts Targeted Attacks: Scattered Spider, also known as UNC3944, is specifically targeting VMware ESXi hypervisors in critical sectors like retail and transportation, using a methodical approach that relies heavily on social engineering and IT help desk impersonation for initial access. Bypassing Security: The attackers use a "living-off-the-land" strategy, leveraging established administrative systems and Active Directory controls to exfiltrate data and deploy ransomware, effectively evading traditional security measures with minimal traces. Rapid Attack Cycle: Their tactics enable the complete attack process—from initial compromise to ransomware deployment—to unfold within hours, highlighting the need for organizations to shift from conventional EDR-focused defenses…

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The Perfect Recipe for Endpoint Security Calls for Privilege Control Today’s most effective ransomware attacks don’t require malware; they require a login. Modern threat actors don’t need to break in. They can leverage legitimate identities and their privileges to gain a foothold, then continue to capitalize on them, moving laterally to probe for more opportunities and manipulate vulnerabilities and exploits to spread ransomware and spyware. A vulnerable identity or account tied to an endpoint can quickly become an attacker’s ticket to your most valuable assets and controls. With legitimate identities being used as the initial foothold in more attacks, we’re…

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Top Highlights Target and Approach: Scattered Spider hackers are focusing on U.S. companies in sectors like retail, airline, and insurance, using sophisticated social engineering tactics—rather than exploiting software vulnerabilities—to gain access to VMware ESXi hypervisors. Attack Execution: The attack chain involves impersonating employees to obtain Active Directory passwords, gaining network insights, and accessing VMware infrastructure, which allows them to execute advanced techniques like "disk-swap" attacks to exfiltrate critical data. Ransomware Deployment: After gaining complete control over the virtual environment, the hackers deploy ransomware to encrypt VM files, demonstrating an unprecedented capability to bypass traditional security measures without exploiting vulnerabilities. Defensive…

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AI Agents are popping up everywhere—in your engineering workflows, your business processes, and your cloud platforms. They’re moving fast—sometimes faster than your governance can keep up. With countless platforms (from IdPs to PaaS providers) making it incredibly easy to launch AI Agents, security teams are scrambling to answer key questions: Who’s launching them? What identities are they using? Where are they operating? Join us for this exclusive discussion panel where we’ll dive into: What exactly counts as an AI Agent (and what definitely doesn’t) The essential non-human identities (NHIs) fueling your AI Agents Shadow AI Agents: why they’re multiplying,…

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Centex Technologies has appointed John Sharp, the former Chancellor of the Texas A&M University System, as a Strategic Advisor to support its growth strategy. In this role, Sharp will provide high-level guidance as the company expands its footprint in cybersecurity, artificial intelligence, digital forensics, and managed IT services. Expanding with Experience With nearly 20 years in the industry, Centex Technologies delivers advanced IT solutions to clients in both the public and private sectors. Its expertise spans IT modernization, cloud infrastructure, application development, cybersecurity, digital forensics, and managed services. Operating across five states, the company is a trusted partner to federal…

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Welcome to this week’s edition of the Weekly Cybertech Roundup, where we bring you the most significant developments and trends shaping the world of cyber technology. From groundbreaking innovations to critical security updates, our roundup highlights the key stories that are driving the industry forward. Whether you’re a tech enthusiast, a cybersecurity professional, or just curious about the latest advancements, we’ve got you covered with all the insights you need to stay informed. Let’s dive into this week’s highlights! Brand Covered: NETSCOUT Headline: NETSCOUT Delivers Double-Digit Energy Savings for Data Center Observability Solutions NETSCOUT SYSTEMS, INC., a leading provider of observability, AIOps, cybersecurity, and…

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Modern CI/CD systems are fast, flexible, and increasingly under fire. Recent attacks like the compromise of GitHub Actions (tj-actions/changed-files) reveal how exposed secrets, unrestricted workflows, and unmonitored build activity create direct paths for supply chain compromise. Join us for a tactical session on securing the most overlooked link in your software delivery process. We’ll break down the OWASP Top 10 CI/CD Security Risks—with real-world examples—and show you how to protect your pipelines where it counts. You’ll learn how to: Lock down service accounts and enforce least-privilege across tools Secure your branches with strong protections and review gates Detect misuse…

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Welcome to your Daily CyberTech Highlights! Each day, we bring you the most essential news and insightful analysis from the world of Cybersecurity, Cloud security, Data protection, Data privacy and Technology. Stay informed on the latest trends, threats, and innovations shaping the digital landscape, so you can make informed decisions and stay ahead of the curve. Let’s dive into today’s top stories! Daily CyberTech Highlights Brand Covered: NETSCOUT Headline: NETSCOUT Delivers Double-Digit Energy Savings for Data Center Observability Solutions NETSCOUT SYSTEMS, INC., a leading provider of observability, AIOps, cybersecurity, and DDoS attack protection solutions, announced how the intentionally efficient design and architecture of its InfiniStreamNG…

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