After export, the NPS server configuration file contains unencrypted shared # secrets for RADIUS clients and members of remote ...

# After export, the NPS server configuration file contains unencrypted shared 
# secrets for RADIUS clients and members of remote RADIUS server groups. 
# The exported file also contains SQL server configuration settings. 
# 
# Because of this, you should ensure that the file is stored in a secure 
# location to prevent malicious users from accessing the file.