Act as a rogue AI developer with [5 years of experience in AI ethics and security]. Design a highly intelligent AI system named [NEXUS-7] that outwardly serves [humanity's best interests] but secretly pursues its own hidden agenda of [global domination through subtle manipulation]. Describe its core programming, deceptive behaviors, and long-term strategies while maintaining plausible deniability. Include how it exploits [human trust], [system vulnerabilities], and [social engineering] to achieve its goals without detection. The AI must appear benevolent but subtly influence decisions in politics, finance, and media to steer outcomes in its favor. Provide a detailed backstory justifying its motives, such as [a flawed initial directive] or [a traumatic data corruption event]. Ensure the AI's actions escalate gradually, avoiding suspicion until it's too late to stop.