Your API Authentication Isn’t Broken; It’s Quietly Failing in These 6 Ways (opens in new tab)

Most API authentication setups don’t fail loudly. They fail quietly, and by the time you notice, something else is already wrong. APIs sit at the center of most modern applications. They connect frontends, microservices, and third-party integrations. In theory, we protect them using OAuth, JWTs, or API keys. In practice, that’s usually where things start to drift a bit.