In addition to any encryption already in place for communication mediums, agencies should encrypt: a. Australian Eyes Only (AUSTEO) information if foreign nationals have access to the communication mediums or systems that can process the information b. Australian Government Access Only (AGAO) information if system users not authorised to access AGAO information have access to the communication mediums or systems that can process the information c. AUSTEO or AGAO information if the communication mediums or systems that can process the information have not been accredited to handle the information.