Competent authorities shall ensure that the concentration risk arising from exposures to each counterparty, including central counterparties, groups of connected counterparties, and counterparties in the same economic sector, geographic region or from the same activity or commodity, the application of credit risk mitigation techniques, and including in particular risks associated with large indirect credit exposures, such as a single collateral issuer, is addressed and controlled, including by means of written policies and procedures. For crypto-assets without an identifiable issuer, the concentration risk shall be considered in terms of exposure to the crypto-assets with similar features.