PrivateSky Secure Information Exchange (SIX)(TM) platform provides fast, easy-to-use protection for email, files and other information sent via the cloud, through a unique two-factor authentication process and a sophisticated, certificateless encryption platform. This encryption process is activated by a click of a button from within Outlook, a web browser or via any browser-based application on a PC, Mac, tablet or smartphone. It is a solution where both encryption and decryption are securely completed with no disruption to a user’s workflow.
Source: https://thehackernews.com/2012/01/data-encryption-privatesky-secure.html