Uncertainty and change aren’t new for cybersecurity; they are its operating system. Security leaders must now handle a threat landscape influenced by two forces that don’t politely take turns: breakneck AI innovations and geopolitical volatility. This report lays out the five threats that will impact security teams the most in 2026: near-autonomous attacks from nation-states, concerns over AI agent threats, non-negotiable AI software supply chains, provenance and IAM risks of AI agents, and digital sovereignty spanning regions and tech stacks. Security and risk professionals can use this report to understand, prioritize, and respond to these threats in 2026.