Secure IoT architecture, futuristic cityscape, skyscraper, neon lights, complex network of wires, servers, routers, firewalls, encrypted data streams, cybersecurity experts, mature men, women in techwear, glasses, professional hairstyles, minimal makeup, formal attire, standing, walking, discussing, gesturing, city streets, nighttime, ambient lighting, cinematic composition, shallow depth of field, realistic textures.