Non-Human Identities (NHIs) are machine identities like API keys, tokens, and certificates that require continuous management to prevent unauthorized access. Effective NHI management involves discovery, classification, monitoring for anomalies, and prompt remediation of vulnerabilities. Organizations benefit through reduced breach risk, improved regulatory compliance, increased operational efficiency through automation, enhanced visibility over access controls, and cost savings. The practice is critical across financial services, healthcare, travel, and DevOps teams. Modern NHI strategies integrate AI-driven monitoring, foster collaboration between security and development teams, and enable organizations to balance innovation with security in cloud environments.