1. A system operatively connected with a block chain distributed network and for using the block chain distributed network for establishing secure access for users in a process data network, the system comprising: a memory device storing logic and rules for the block chain; and a processing device operatively coupled to the memory device, wherein the processing device is configured to execute computer-readable program code to: receive an indication that an entity has executed a transaction with a third source institution via a first transaction channel; record information associated with the transaction executed by the entity with the third source institution in a distributed ledger of the block chain distributed network, wherein the distributed ledger further comprises past transactions executed by the entity with one or more financial institutions, wherein the past transactions comprise at least information associated with transactions executed by the entity with a first source institution and a second source institution via one or more predetermined transaction channels including at least a specific banking center, a specific ATM (Automatic Transaction Machine), or a specific online/mobile banking channel; analyze the distributed ledger to determine a pattern associated with the past transactions executed by the entity stored in the distributed ledger; compare the information associated with the transaction executed by the entity with the third source institution with the pattern associated with the past transactions stored in the distributed ledger to determine a match, wherein comparing further comprises at least determining that the first transaction channel matches at least one of the one or more predetermined transaction channels; authorize the execution of the transaction executed by the entity with the third source institution to be completed based on at least determining a match between the information associated with the transaction executed by the entity with the third source institution and the pattern associated with the past transactions stored in the distributed ledger, wherein authorizing further comprises: identifying a smart contract between the third source institution, the first source institution, and the second source institution, wherein the smart contract comprises logic and rules associated with the smart contract, wherein the smart contract is configured to be self-executing; comparing the information associated with the transaction executed by the entity with the third source institution to the logic and rules of the smart contract; determining that the information associated with the transaction executed by the entity with the third source institution meets the logic and rules of the smart contract; and validating the information associated with the transaction executed by the entity with the third source institution in response to determining that the information associated with the transaction executed by the entity with the third source institution meets the logic and rules of the smart contract; determine, based on at least the one or more past transactions executed by the entity via the one or more predetermined transaction channels, that the entity is associated with misappropriate activity; aggregate information associated with past transactions executed by the entity via the one or more predetermined transaction channels with the one or more financial institutions; and record the aggregated information associated with the past transactions in the distributed ledger.