After ranting recently about the choices we make to give "big data" companies access to our private information in ways that might be abused or exploited by government eavesdroppers, I thought it would be worth sharing some of the options I've found for using "the cloud" while also retaining a reasonable level of control over access to the data stored there.
This post has information about tools and software you can deploy yourself to approximate some of the functionality that third party services might provide, but that might also make you vulnerable to privacy and security vulnerabilities. It's based on my experiences designing and implementing solutions for my own company, so it's mostly applicable to the interests of businesses and organizations, but may also be useful for personal projects.
A few important disclaimers: any time you make your personal or corporate data available on Internet-connected devices, you're creating a potential privacy and security vulnerability; if you need to keep something truly protected from unauthorized access, think hard first about whether it belongs online at all. Also, the tools and services I'm listing here are harder to setup and configure than just signing up for one of the more well-known third party services, and may require ongoing maintenance and updates that take time and specialized knowledge. In some cases, it requires advanced technical skills to deploy these tools at all, which is the reason most people don't or can't go this route. Hosting and maintaining your own tools can often have a higher initial and/or ongoing cost, depending on what financial value you assign to data privacy. Sometimes the privacy and security tradeoffs that come with using a third-party service are well worth it.
Still interested in options for using the cloud without giving up control over your data? Read on.
Email and Calendar Sharing
Need a powerful, free email account? Need robust calendar management and sharing capabilities? Everybody uses Gmail and Google Calendar, so just sign up for an account there, right? Unless you don't want Google having access to all of your email communications and usage patterns, and potentially sharing that information with advertisers, government agencies or other entities.
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