The convenience of credit cards, debit cards, and online banking has led to their dominance in all areas of society, but particularly online. The physical alternatives — such as posting a check or cash — are slow and insecure. But the convenience of digital payments comes with a cost that doesn't show up on your statement: your privacy.

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A growing number of users are realizing that, rather than battling with companies to maintain their privacy at the application level, they should look to private hosting. Privacy-focused servers enable users to gain complete transparency and control over their data by self-hosting applications, as well as build websites, blogs, and apps that are private from the ground up. Th...