BLC - Blockchain

This document provides an overview of privacy and personally identifiable information (PII) protection as applied to blockchain and distributed ledger technologies (DLT) systems.

This document provides fundamental terminology for blockchain and distributed ledger technologies.

This document provides an overview of smart contracts in BC/DLT systems; describing what smart contracts are and how they work. It also discusses methods of interaction between multiple smart contracts. This document focuses on technical aspects of smart contracts. Smart contracts for legally binding use and applications will only be briefly mentioned in this document.

This document discusses the threats, risks, and controls related to:
— systems that provide digital asset custodian services and/or exchange services to their customers (consumers and businesses) and management of security when an incident occurs;
— asset information (including the signature key of the digital asset) that a custodian of digital assets manages.
This document is addressed to digital asset custodians that manage signature keys associated with digital asset accounts. In such a case, certain specific recommendations apply.
The following is out of scope of this document:
— core security controls of blockchain and DLT systems;
— business risks of digital asset custodians;
— segregation of customer's assets;
— governance and management issues.