At some point in your developer journey, you were told to use JWTs for authentication. For some, it was from a YouTube tutorial. For others, a blog post or perhaps a senior member of your team. Either way, you pasted the code, got a token and logged in. All was well. But then, something broke. The problem is with the way we talk about authentication. We often reduce it to implementation details like "use JWT" or "store the token here" without asking the important questions. Why this token format? Why this flow? Why this storage method? The truth is JWT is just a format. A way to package data. It is not a full authentication system. It does not handle how tokens are issued. It does not protect against interception. And it definitely does not teach you how to secure your application. Limitations of JWT as a One-Size-Fits-All Solution JWTs are great for certain use cases. They are self-contained, compact and easy to parse. They also come with risks that many developers might overlook or not fully understand.…