Machine identities are digital credentials that allow non-human entities such as servers, applications, APIs, and IoT devices to authenticate and communicate securely. As the number of machine identities grows, so do the risks associated with mismanaged certificates, weak authentication controls, and unauthorized access. Machine identity security is crucial to prevent unauthorized access, credential theft, supply chain attacks, compliance violations, service disruptions, and financial penalties. Organizations must implement automation tools, identify "rogue" machine identities, protect certificate authorities from being compromised, conduct machine identity audits, and enforce least privilege access to secure their machine identities. The future of managing machine identities requires advanced technology that can analyze permissions and activity for all non-human identities, including machine identities, and provide a unified platform for protection both for human and non-human identities.