Daily Security Briefing #270

May 30, 2026 | Read Online

SideCopy attacks Afghanistan Finance Ministry, Palo Alto PAN-OS exploited, and Google’s DBSC rolls out…

Executive Summary

Cybersecurity threats continue to escalate with malicious actors adapting to disruptions. The recent SideCopy campaign targeting Afghanistan’s Ministry of Finance highlights the need for robust security measures in high-stakes environments. Meanwhile, a critical authentication-bypass vulnerability in Palo Alto Networks PAN-OS and Prisma Access is being actively exploited by attackers. Additionally, Google has rolled out Device-Bound Session Credentials (DBSC) to prevent session-based account takeovers.

Top Articles

SideCopy Deploys Persistent XenoRAT Against Afghanistan Finance Ministry Pakistan-linked threat actor SideCopy has launched a targeted spear-phishing campaign against Afghanistan’s Ministry of Finance (MoF), deploying a customized XenoRAT 1.8.7 implant to beacon to European infrastructure. GBHackers

Palo Alto PAN-OS Authentication Bypass Vulnerability Actively Exploited in the Wild A critical authentication-bypass vulnerability affecting Palo Alto Networks PAN-OS and Prisma Access is being actively exploited by malicious actors, prompting CISA to add CVE-2026-0257 to its Known Exploited Vulnerabilities (KEV) catalog. GBHackers | The Hacker News

Google Rolls Out DBSC in Chrome to Prevent Session-Based Account Takeovers Google has officially moved Device-Bound Session Credentials (DBSC) to general availability in Chrome for Windows, marking a significant step forward in defending enterprise and personal accounts against session hijacking and cookie theft attacks. CyberPress

New CIFSwitch Linux Flaw Gives Root on Multiple Distributions A newly discovered local privilege escalation vulnerability dubbed ‘CIFSwitch’ in the Linux kernel could allow attackers to forge CIFS authentication key descriptions, abuse the kernel’s key request mechanism, and gain root privileges. BleepingComputer

Russian Spies Aggressively Seeking Western Technology as Sanctions Bite Moscow’s agents are building fake companies, recruiting middlemen, and deploying cyber spies and hackers who gather information that could be used to attack key infrastructure. SecurityWeek

Exploit Code Published for Critical Flowise RCE Vulnerability The one-click vulnerability allows attackers to execute arbitrary code on self-hosted Flowise servers by tricking users into importing a malicious chatflow. SecurityWeek

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.