Education technology is as vulnerable as it is essential. Fulton County Schools in Atlanta, Georgia, serving 95,000 students, tackled the growing cyber threat landscape with a proactive approach and the right tools. From thwarting over 250,000 phishing attempts to mitigating ransomware threats, they developed a comprehensive plan aligned with NIST guidelines. This case study details their strategy, including a dedicated cybersecurity task force, advanced monitoring powered by Microsoft 365 A5, and transparent communication with leadership.