This presentation explores Juniper Networks' comprehensive approach to securing AI clusters against cyber threats. Learn how their defense-in-depth strategy protects high-value AI infrastructure without sacrificing performance. Kedar Dhuru, Sr. Director of Product Management, demonstrates how Juniper addresses the unique security challenges of AI data centers, including securing WAN connections, preventing DDoS attacks, implementing segmentation to prevent lateral threat movement, and protecting multi-tenant environments. Discover their solutions for high-speed encrypted connections, threat detection capabilities that identify compromised models, and advanced security features including machine learning algorithms and DNS security. The talk also introduces Juniper's new one-rack-unit firewall with high throughput and MACSec capabilities, designed specifically for the increased scale and performance requirements of AI environments. Recorded live in Santa Clara on April 23, 2025, as part of AI Infrastructure Field Day.