Deloitte enters the Polkadot ecosystem to issue reusable digital credentials Deloitte, one of the world’s largest accounting firms, is integrating the KILT blockchain, a Polkadot parachain focusing on decentralized identities and verifiable credentials. Deloitte will use KILT to support its know-your-customer (KYC) and know-your-business (KYB) processes, which are vital to protect institutions against fraud, corruption, money laundering, and other crimes.