Topic: Network Security Fundamentals: Protecting Modern Enterprise Networks
Abstract: Enterprise networks have evolved beyond traditional data centres and corporate perimeters. Cloud services, remote users, SaaS applications, mobile endpoints, APIs, and connected environments have created a distributed infrastructure that requires a broader approach to network protection.
The current webinar explores the fundamentals of network security for modern enterprise environments, focusing on the principles, technologies, and practices organisations can use to protect connectivity and critical business resources. The session will examine network architecture, segmentation, access control, secure connectivity, traffic visibility, and threat detection and response.
The discussion will also cover how Zero Trust, cloud networking, continuous monitoring, and identity-centric security are changing traditional approaches to network defence. Participants will gain practical insights into identifying network risks, implementing appropriate security controls, and developing a defence-in-depth strategy that can adapt to evolving threats and enterprise technology environments.
Key Takeaways:
- Core principles of enterprise network security architecture and the changing attack surface
- Role of network segmentation and Zero Trust in modern network defense
- How identity and access controls complement traditional network security controls
- Best practices for improving network visibility, traffic monitoring, and threat detection
- How network security teams can prepare for and respond to network-based incidents
- Defense-in-depth strategy for protecting modern enterprise networks
- Continuous monitoring and security operations for long-term cyber resilience
Speaker:
Ross A. Leo, Chief Information Security Officer (CISO) & Data Protection Officer (DPO), ObservSmart Invisalert Solutions, Inc.
Bio: Ross A. Leo is an information security pioneer with more than four decades in the field. His experience spans systems analysis and engineering, security and privacy consulting, operational risk, healthcare information governance, and professional education. His prior employers and engagements have included IBM, St. Luke’s Episcopal Hospital, Computer Sciences Corporation, and Rockwell International. During 22 years supporting NASA, he served from 1998 to 2002 as Program Manager of Security Engineering and Chief Security Architect for Mission Control at Johnson Space Centre. He later served from 2002 to 2006 as Director of Information Security and Chief Information Security Officer for the University of Texas Medical Branch Managed Care Division.
In addition to his extensive field experience, he has many years’ experience designing and teaching professional curricula in nearly every area of information security and has taught several thousand security and privacy practitioners. As a published author, he wrote and edited The HIPAA Program Reference Handbook for CRC Press in 2005. He co-authored NISTIR 8006, NIST Cloud Computing Forensic Science Challenges (2020), and NIST SP 800-201, Cloud Computing Forensic Reference Architecture (2024). His next book from CRC Press will be released in early 2027: ‘HIPAA Compliance: From Design to Operations’.
