Prompt: Center Image: Place a large image of a lock in the center of the poster, which can have a numerical code pattern on it to emphasize the security of the information. Top Left: Place an image of the earth to convey the global impact of information security. A pattern of circuit boards can be drawn around the earth to emphasize modern technology. Upper right corner: Design a magnifying glass pattern to express the idea of information checking and to emphasize the importance of information confidentiality.