A company's developers are using AWS Lambda function URLs to invoke functions directly.

Comprehensive and Detailed Explanation From Exact Extract:

To prevent developers from configuring unauthenticated Lambda function URLs, the most effective approach is to use Service Control Policies (SCPs) at the organizational level. By explicitly denying actions such as lambda:CreateFunctionUrlConfig and lambda:UpdateFunctionUrlConfig when the lambda:FunctionUrlAuthType is set to NONE, the organization ensures that only authenticated function URLs are deployed in production.

This method imposes no additional workload on developers and leverages AWS Organizations' SCPs to enforce centralized security policy — a recommended practice in the Identity and Access Management domain.