Every breach involving stolen credentials has the same root cause: the credential existed somewhere in plaintext long enough to be found. In a database, in an environment variable, in a log file, in a memory dump. The exposure window might be milliseconds or months. What matters is that the string was there and someone found it. The standard response is better secret management: vault solutions, rotation policies, least-privilege access, encrypted storage. All of these reduce the exposure window. None of them eliminate it. The credential still exists in a form that can be extracted if the right system is compromised at the right moment. Rialo's REX model takes a different approach to this problem. Authentication credentials are encrypted before submission. Inside the private execution environment, they're decrypted exactly once, used for the specific call they were intended for, then cleared from memory. The plaintext never appears on the public ledger. Even validators can't access the contents of the execution environment while it's running. That's not a marginal improvement on secret management. It's a different threat model. @RialoHQ isn't trying to protect a stored credential from being stolen. It's eliminating the stored credential entirely. You can't steal what doesn't persist. The use-once-and-destroy pattern for sensitive authentication data is something Web2 security has been trying to approximate for decades with key management services and hardware security modules. Rialo implements it natively at the execution layer.