EFS can encrypt data that is not part of a database system, which implies that the scope of encryption for EFS is much wider when compared to a system such as TDE that is only capable of encrypting database files.[citation needed] Whilst EFS does widen the scope of encryption, it also decreases database performance and can cause administration issues as system administrators require operating system access to use EFS. Due to the issues concerning performance, EFS is not typically used in databasing applications that require frequent database input and output. In order to offset the performance issues it is often recommended that EFS systems be used in environments with few users.[16]