Definition ∞ RPC Endpoint Security specifically addresses the protection of the entry points through which external applications interact with a blockchain node or service using Remote Procedure Calls. These security measures guard against unauthorized access, data breaches, and malicious commands. Proper configuration and robust authentication are vital for maintaining the integrity of these interfaces.
Context ∞ The vulnerability of RPC endpoints is a recurring theme in reports on blockchain security incidents, often serving as a vector for asset theft. Developers are continuously advised to implement strict access controls, rate limiting, and secure communication protocols for all public-facing RPC endpoints. The ongoing challenge is to balance accessibility for legitimate applications with robust defense against malicious actors.