Use secure protocols when transferring data
Use secure protocols when transferring data to prevent third parties from intercepting the sensitive information. Given that the information being sent is meant to be seen by the sender and receiver only, use the following practices whenever possible:
Use SFTP over FTP
When transferring files containing any sensitive data from one location to another, it is recommended to use SFTP instead of FTP.
User HTTPS over HTTP
When working with sensitive data, ensure that the communication between your browser and the server is secure by using HTTPS over HTTP.
Enable TLS with SMTP
Whenever possible, use TLS with SMTP to ensure that the contents of the message being sent are secure during transmission between the servers. To enable TLS, see Email Connection.