Common Pitfalls of Base64 Encoding Sensitive Credentials

One of the most persistent security mistakes in application development is treating Base64 encoding as a form of obfuscation or encryption. It is simple data serialization.

Since anyone can decode Base64 in milliseconds, sending Base64 strings in query params or headers without transport security is equivalent to sending them in plain text.

We outline proper hashing methods (like SHA-256 with salts) and local encryption routines to avoid leaky authentication pipelines.