Invisible Armor: How Virtual Credit Cards Are Rewriting the Rules of Digital Spending

If you look inside your wallet right now, you will likely find a rectangular piece of plastic or metal stamped with your name, a 16-digit number, an expiration date, and a 3-digit CVV code. For decades, this physical token has been the master key to commerce. But as our lives migrate increasingly online, that master key has become a liability. Every time you type those numbers into an e-commerce checkout page, a subscription form, or an unfamiliar booking site, you are trusting a third party to keep your financial life safe.