I have recently configured an EFS to which several people in the compan need SFTP access. I configured AWS transfer family which i've connect to using a VPC endpoint. Everything is working fine, however, our security systems are telling me that "VPC endpoint is publicly accessible" (it is restricted to my IP in the security group) and that I should "Secure your VPC endpoint by allowing access to only trusted AWS accounts." but transfer server only supports the full-access endpoint policy.
I am just wondering if there is a more secure way to access EFS over SFTP?