Cisco security reference architecture, futuristic laboratory, high-tech environment, sleek metallic surfaces, LED lights, rows of computer servers, network devices, routers, switches, firewalls, intrusion detection systems, virtual private networks, cloud computing infrastructure, cybersecurity professionals, white lab coats, goggles, laptops, tablets, diagrams on screens, complex network topology maps, 3D holographic projections, futuristic chairs, minimalist decor, soft blue lighting, low-angle composition, cinematic atmosphere.