Cybersecurity expert, male, muscular build, serious expression, short black hair, glasses, black blazer, white shirt, dark blue trousers, standing in front of a futuristic cityscape, skyscraper, neon lights, night scene, abstract digital code, circuits, 3D models, holographic projections, zero trust architecture diagram, network nodes, firewalls, encryption symbols, glowing blue lines, complex composition, cinematic lighting, deep depth of field, high-tech atmosphere.