Your JWT decoder might be leaking your tokens. Here's how to check. (opens in new tab)

Most developers paste production JWTs into online decoders without thinking. Here's a 10-second DevTools check to see if your token is actually leaving your machine. A coworker was debugging an auth bug last month. Standard workflow: copy the JWT from the failing request, paste it into an online decoder, read the payload. I've done it a thousand times. You probably have too. Except the token he pasted belonged to a real customer. And the decoder he used is owned by an identity company that's ...