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Key Findings Microsoft released two open-source tools, RAMPART and Clarity, designed to shift AI security testing from post-deployment to the development phase RAMPART is a Pytest-native framework that continuously tests AI agents for vulnerabilities including cross-prompt injection attacks and data exfiltration throughout the development pipeline Clarity functions as an AI-powered "thinking partner" that guides developers through design decisions and their security implicati

Key Findings Symantec and VMware Carbon Black researchers have uncovered a new ransomware strain called Osiris, used in a November 2025 attack against a major Southeast Asian food service franchise operator. Osiris leverages the POORTRY driver in a bring-your-own-vulnerable-driver (BYOVD) attack to disable security software on targeted systems. The new ransomware has full-featured capabilities, including the ability to stop services and processes, select files and folders to