Systems and methods for a user interface for preventing data transmission including: applying data processing rules to a set of transaction data to determine a furnishing decision for a subset of the set of transaction data, receiving a selection of one or more data processing rules of the set of data processing rules; determining, based on the selected data processing rules, a list of accounts comprising at least a first account and a second account, wherein the first account is associated with the first data of the subset and the furnishing decision for the first data, and the second account is associated with the second data of the subset and the furnishing decision for the second data; changing the furnishing decision for the first data; and automatically updating the furnishing decision for data associated with each account of the list of accounts.