Daily Security Briefing #260
- DjediTech
- Security , Newsletter
- May 20, 2026
Table of Contents
May 20, 2026 | Read Online
Fox Tempest takedown, NVIDIA Triton Server flaw, and AI security concerns…
Executive Summary
Cybersecurity threats continue to evolve with malicious actors adapting to disruptions. Microsoft’s disruption of the Fox Tempest malware-signing-as-a-service operation highlights collaborative efforts between industry partners. Meanwhile, a critical vulnerability in NVIDIA’s Triton Inference Server has been discovered, allowing authentication bypass attacks. Additionally, concerns over AI security have grown, with experts questioning traditional benchmarking methods.
Top Articles
Microsoft Takes Down Malware-Signing Service Behind Ransomware Attacks Microsoft disrupted Fox Tempest, a threat actor that weaponized the company’s Artifact Signing system to deliver malicious code and conduct ransomware attacks. The operation compromised thousands of machines and networks worldwide. The Hacker News
NVIDIA Triton Server Flaw Enables Authentication Bypass Attacks A critical 9.8 CVSS authentication bypass vulnerability in NVIDIA’s widely deployed Triton Inference Server allows unauthenticated remote attackers to execute code. The update, released May 18, follows a growing pattern of high-severity flaws targeting the platform. cyberpress.org
Ukraine Identifies Infostealer Operator Tied to 28,000 Stolen Accounts The Ukrainian cyberpolice, working with U.S. law enforcement, identified an 18-year-old man suspected of running an infostealer malware operation targeting users of an online store in California. BleepingComputer
GitHub Says Internal Repositories Were Impacted in Poisoned VS Code Extension Attack An employee device was compromised through a poisoned Visual Studio Code extension, exfiltrating internal repositories. The incident underscores the growing risks facing software development platforms and third-party developer tools. cyberscoop.com
Fox Tempest Abused Microsoft Artifact Signing to Certify Malware Microsoft’s Digital Crimes Unit dismantled Fox Tempest, a financially motivated threat actor that operated a sophisticated malware-signing-as-a-service platform. The group enabled ransomware groups and cybercriminals worldwide. cyberpress.org
Hackers Bypass SonicWall VPN MFA Due to Incomplete Patching Threat actors brute-forced VPN credentials and bypassed multi-factor authentication on SonicWall Gen6 SSL-VPN appliances, deploying tools used in ransomware attacks. BleepingComputer
Operationalizing CTEM Faster: Build Surface Command Dashboards in Minutes Rapid7’s Surface Command was built to unify asset and identity intelligence across external attack surfaces. A new feature allows security leaders to operationalize visibility into executive-ready dashboards or operational reporting without Cypher query knowledge. Rapid7 Blog
On AI Security Experts question traditional benchmarking methods for measuring AI capabilities, highlighting the need to reassess how security is measured in AI development and deployment. Schneier Blog
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.