Building a "Privacy Shield" in React: How I obfuscated financial data for working in public

As a solo founder building AccIQ (a local-first financial IDE), I spend a lot of time working in coffee shops and coworking spaces. The problem? I’m often looking at my own cash flow, runway, and burn rate. Having those numbers visible on a 14-inch screen in a crowded cafe is... stressful. I needed a way to "hide" the data instantly without breaking the UI or reloading the page. So, I built a global Privacy Shield. Here is the simple React + Tailwind pattern I used to build it. The Logic: Blur, Don't Hide The most common way to hide data is to replace it with asterisks (****). But that breaks the visual rhythm of a dashboard. It makes it hard to see if a column is balanced or if a graph is trending correctly. Instead, I chose to use CSS Filters. By applying a blur, you maintain the "shape" of the data (you can tell if it's a large number or a small one) without it being legible to someone sitting at the next table. The Global State I used a simple React Context (or a global state hook)