Implementations are directed to receiving, by a security data exchange platform, security data from an enterprise of a plurality of enterprises, the security data representative of a data security threat against the enterprise, processing the security data to determine a score assigned to the security data, the score being determined based on baseline threat data, providing a data summary to a distributed ledger platform having a private distributed ledger, the data summary being stored to the private distributed ledger, being representative of the security data, and having a smaller memory footprint than the security data, determining, a token value to be associated with the security data, the token value being determined using a smart contract executed on the distributed ledger platform, and being based on the data summary of the security data, and updating, by the distributed ledger platform, a wallet associated with the enterprise to include the token value.