CISSP security expert, mature lady, 40s, confident posture, glasses, short hair, minimal makeup, business attire, standing in front of a whiteboard, explaining security architecture and design concepts, hand gesturing to illustrate ideas, wearing a CISSP badge on her jacket, modern conference room, city skyscraper view from the window, morning light, professional atmosphere, soft focus on the expert, sharp focus on the whiteboard, cinematic composition.