Security is baked in Finscale with the use of sophisticated encryption schemes - the kind that power authentication mechanism for Bitcoin, a peer to peer network.
Finscale APIs use a novel approach to authenticate, using no password and ZKP (Zero knowledge Proof). This enhances security by reducing various vector attacks such as Man in the Middle attack.
Another component of the security is to connect with each other, using cryptographic signatures. This allows a secure data encoding.
For eg: Any API that sends or receive data over Finscale layer, or any service that interacts with each other communicates through this signature mechanism.