AWS has enhanced its Lambda Functions platform by introducing Attribute-Based Access Control (ABAC), which allows for more granular permissions management based on tags associated with IAM roles and Lambda functions. This feature builds on traditional Role-Based Access Control (RBAC) principles, enabling organizations to enforce the principle of least privilege without needing to update permissions for each new user or resource. By using attributes, or tags, organizations can delineate access between different teams, ensuring that, for example, developer team members cannot access operations team resources. The implementation process involves setting up IAM roles and policies with specific conditions and tags, which are then attached to Lambda functions to control access. This update aims to simplify governance, standardize roles, and maintain security boundaries, with a common application being the restriction or enabling of function invocation based on team tags.