SpiderOak – 100% Private Online Backup, Sync and Sharing
https://spideroak.com/

First released in 2007, SpiderOak helped define the industry of online backup. Determined to dispel the myth that ‘data online can’t be secure,’ SpiderOak carved its niche as the top choice for those most concerned with privacy. The engineering goal was simple – devise a plan where users’ files, filenames, file types, folders, and/or any other personal information is never exposed to anyone for any reason (even under government subpoena). This describes  SpiderOak’s ‘zero-knowledge’ privacy environment. What does ‘Zero-Knowledge’ privacy mean? In technical terms it means that the server has ‘zero-knowledge’ of your data. In non-technical terms it means that your data is 100% private and  only readable to you. In a world where more and more of our lives are online, it behooves us to think about who has access to our data from critical business documents to personal photo albums. SpiderOak provides  the ability to utilize cloud technologies while retaining that precious  right we call privacy. This will be added to Privacy Resources Subject Tracer™.