TLDR: Nametag Inc. has launched ‘Signa,’ a new service designed to secure agentic AI systems by providing auditable proof of human authorization for AI actions. This initiative, announced on September 24, 2025, expands Nametag’s partnership with Okta, integrating Okta’s AI policy engine with Nametag’s Deepfake Defense technology to combat identity threats and ensure human oversight in autonomous AI operations.
In a significant move to bolster the security of rapidly evolving artificial intelligence systems, identity verification platform startup Nametag Inc. announced on September 24, 2025, the debut of ‘Nametag Signa.’ This innovative service aims to secure ‘agentic AI’ by introducing ‘Verified Human Signatures,’ a new tier of enterprise assurance against deepfake identity threats and unauthorized AI actions. The launch is accompanied by an expanded partnership with identity management giant Okta Inc.
The core challenge Signa addresses is the increasing autonomy of AI agents and their growing access to sensitive enterprise resources. As AI systems are tasked with critical operations—such as authorizing access to confidential information, placing high-value orders, or changing payment instructions—the need for clear, auditable human oversight becomes paramount. Nametag Signa provides cryptographically attested identity verification, offering auditable proof that any action performed by an AI agent was explicitly approved by a verified human.
Todd Thiemann, principal analyst at the Enterprise Strategy Group, underscored the importance of this development, stating, “Effective AI security requires verification of both the human and nonhuman identities associated with AI. Enterprises are eager to deploy AI but typically lack adequate identity guardrails to protect themselves against its misuse. Solutions that embed human identity verification into AI workflows give enterprises a practical way to reduce AI risk without slowing AI adoption.”
The expanded collaboration with Okta is central to Signa’s functionality. The new service seamlessly integrates Okta’s robust policy engine for AI with Nametag’s cutting-edge Deepfake Defense identity verification technology. This powerful combination allows IT and security teams to configure and assign policies that ensure a Verified Human Signature is behind critical AI sessions and actions, thereby mitigating risks associated with AI misuse and impersonation.
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This partnership builds on previous collaborations, with Nametag having joined the Okta Elevate Partner Program in October 2024, enhancing Okta’s security ecosystem by protecting user account lifecycles against AI deepfakes and other impersonation threats. The introduction of Signa marks a crucial step forward in securing the next generation of AI-driven enterprise operations, providing a vital layer of trust and accountability in an increasingly automated world.


