Cloud breaches are increasingly driven by authorized access, not exploits. By 2026, attackers will move laterally across SaaS platforms using OAuth grants, integration accounts, and stolen tokens, bypassing traditional security controls. This session examines SaaS-to-SaaS lateral movement as an emerging breach pattern and provides practical detection and prevention strategies. Attendees will learn how to identify risky permissions, monitor abuse, and redesign integrations without disrupting business operations.