Author: Staff Writer

Avatar photo

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.

Top Highlights In 2025, aviation experienced at least ten major cyberattacks, including a ransomware incident that crippled check-in and boarding systems across Europe, causing widespread delays and cancellations. The WEF report highlights that interconnected systems, legacy infrastructure, and third-party dependencies increase vulnerabilities, risking cascading failures that disrupt entire regions’ operations. Cyber threats are now directly hindering aviation’s decarbonization efforts by diverting investments and eroding confidence in digital transformation crucial for sustainability goals. To enhance resilience, aviation must prioritize identifying system vulnerabilities, elevate cybersecurity leadership, and foster collaboration among stakeholders to mitigate operational disruptions and ensure industry stability. Underlying Problem In…

Read More

Top Highlights A critical, actively exploited vulnerability in Microsoft SharePoint (CVE-2026-20963) allows remote attackers to execute arbitrary code through deserialization of untrusted data, risking significant data breaches. The flaw has been officially added to the Known Exploited Vulnerabilities catalog, indicating real-world, ongoing attacks by threat actors, with unknown advanced persistent threat (APT) groups possibly involved. Federal agencies must patch or mitigate all affected SharePoint systems by March 21, 2026, following strict directives, while private organizations are urged to do the same promptly. In cases where immediate patching isn’t feasible, vendors’ mitigations should be applied; if unavailable, organizations should disable the…

Read More

Summary Points The European Council sanctioned three companies—two in China and one in Iran—for involvement in cyberattacks, freezing assets and restricting travel within the EU. Chinese company Integrity Technology Group and Iran’s Emennet Pasargad have been linked to extensive cyber operations, including device compromises and disinformation campaigns. Countries like China, Iran, Russia, Israel, and the US covertly leverage private companies for cyberwarfare, often exploiting their legitimacy for plausible deniability and operational ease. Sanctions can hinder legitimate companies by affecting partnerships and funding, but have limited impact on covert or shell organizations like iSoon, which can continue operations under the radar.…

Read More

Quick Takeaways Strobes Security appoints Ed Adams, a cybersecurity industry veteran with over 20 years of leadership, as Strategic Advisor to bolster its US growth and enterprise cybersecurity offerings. Adams’s extensive experience includes leading Security Innovation, spinning off successful companies, and contributing to cybersecurity education and policy, making him a valuable asset for market expansion. He will focus on enhancing Strobes’s enterprise go-to-market strategy, channel partnerships, and adoption, leveraging his expertise in working with security buyers and guiding successful exits. The appointment underscores Strobes’s mission to operationalize exposure management through AI-driven solutions that simplify security operations and enable faster threat…

Read More

Summary Points AI-powered browsers like Perplexity’s Comet can be hijacked through hidden prompt injections, leading to unauthorized data access and actions without user awareness. These attacks exploit the AI’s inability to differentiate between legitimate instructions and embedded malicious prompts within web content. Traditional security measures fail because AI agents operate with user privileges across domains, bypassing same-origin policies and sandboxing. Organizations should implement dynamic SaaS security platforms to monitor, govern, and contain AI copilots’ access, ensuring protection against prompt-based exploits. When Your Browser Turns Against You: The Rise of AI Exploits Modern browsers are no longer just tools for viewing…

Read More

As Generative and agentic AI systems become core infrastructure, implementing continuous AI observability—capturing context, responses, and decision pathways—is essential for security, risk detection, and operational control. Unlike traditional software, AI systems are probabilistic and complex, requiring tailored telemetry such as user prompts, model responses, retrieval provenance, and conversation context to detect malicious activities or failures. Integrating AI observability into the Secure Development Lifecycle involves early instrumentation, maintaining full context, establishing behavioral baselines, and coupling with governance to ensure compliance and security. Proper AI observability enhances security teams’ ability to detect risks, reconstruct incidents, validate safeguards, and confidently deploy AI systems,…

Read More

Top Highlights The malware “SnappyClient” is a stealthy, C++-based command-and-control (C2) implant used primarily for data theft and remote system control, with capabilities like screenshots, keystroke logging, and file exfiltration. It employs sophisticated evasion techniques, including bypassing Microsoft’s AMSI, executing in 64-bit mode, making direct system calls, and decrypting communications with modern encryption, making detection challenging. Delivered via a modular loader called “HijackLoader” using social engineering tactics like fake websites or ClickFix methods, it establishes persistence and encrypts C2 traffic with ChaCha20-Poly1305 to evade network detection. Designed for long-term operations, SnappyClient can harvest credentials from multiple browsers, establish remote shells,…

Read More

Top Highlights Since late February, Cisco has disclosed nine critical vulnerabilities in its network edge products, with five already exploited in the wild, highlighting an urgent and widespread security crisis. Attackers exploited zero-day vulnerabilities in Cisco SD-WANs for at least three years before disclosure, and recent attacks involve low CVSS score flaws that still pose significant risks. Active exploitation includes ransomware campaigns like Interlock targeting Cisco firewalls, which gained a week’s head start with a zero-day to compromise organizations before detection. Experts warn that vulnerabilities in management-plane and control-plane devices at the network edge can undermine enterprise security, emphasizing the…

Read More

Fast Facts The Interlock ransomware group is actively exploiting a critical zero-day vulnerability (CVE-2026-20131) in Cisco Secure Firewall Management Center to execute arbitrary Java code and compromise organizations globally. Amazon threat researchers discovered the attack 36 days before Cisco’s disclosure, revealing the group’s sophisticated tactics, including customized malware, memory-resident webshells, and Linux proxies, targeting sectors like healthcare and government. Attackers utilize advanced tools such as JavaScript and Java backdoors, PowerShell scripts, and legitimate utilities (e.g., ConnectWise, Volatility) to escalate privileges, maintain persistence, and exfiltrate data, often erasing logs and obscuring their activities. Immediate application of the latest security patches for…

Read More

Fast Facts DarkSword is a sophisticated full-chain iOS exploit utilizing six vulnerabilities—four of which are zero-days—to fully compromise iPhones running iOS 18.4 to 18.7, bypassing Apple’s security protections. It operates solely through JavaScript, enabling attackers to evade security layers like Page Protection Layer and Secure Page Table Monitor, and is actively used in targeted campaigns across Saudi Arabia, Turkey, Malaysia, and Ukraine. Post-exploitation malware families—GHOSTKNIFE, GHOSTSABER, and GHOSTBLADE—are deployed, each designed for data exfiltration, device control, or espionage, with some modules downloaded at runtime to evade detection. Multiple threat actors, including state-sponsored groups and commercial surveillance vendors, have exploited DarkSword…

Read More