Harmonic Security is an AI Governance and Control (AIGC) platform that helps enterprise security teams manage, monitor, and enforce data protection policies across employee use of generative AI tools. Designed for organizations navigating widespread AI adoption, the platform provides real-time visibility and inline controls over what data employees share with AI applications — without blocking productivity or pushing usage underground. As employees increasingly rely on tools like ChatGPT, Claude, Perplexity, Canva AI, and other AI assistants in their daily work, sensitive data such as source code, financial projections, customer records, and confidential deal terms routinely enters these systems. Harmonic addresses this by analyzing the actual content and context of every prompt and interaction across browsers, desktop applications, and agentic workflows — including MCP servers — before data leaves the organization. The platform uses 25+ proprietary Small Language Models (SLMs) purpose-built to understand user intent and domain-specific context (such as legal discourse, M&A activity, or protected health information) with ~200ms latency, without training on customer data. This allows security teams to apply contextual, intent-aware controls rather than relying solely on keyword matching or blanket blocking policies. Harmonic Security is designed for security leaders in mid-market and enterprise organizations who need to enable AI adoption at scale without increasing data exposure risk. Customers have reported a 300% increase in AI tool usage alongside a 72% reduction in sensitive data exposure within 90 days of deployment.