METHOD AND SYSTEM FOR OBFUSCATION OF GRANULAR DATA WHILE RETAINING DATA PRIVACY

A method for obfuscating granular transaction data via the introduction of noise includes: storing transaction data entries, each including transaction data values including at least a transaction amount and merchant identifier; receiving a data request including selection criteria and desired metrics; identifying a subset of transaction data entries based on the selection criteria; identifying ametric value for each desired metric based on the corresponding transaction data value in each of the transaction data entries in the subset; inserting noise to modify the subset by (i) adjusting thetransaction data values included in at least two of the transaction data entries, and/or (ii) adding at least one transaction data entry to and removing at least one transaction data entry from the subset, where the inserted noise adjusts the metric values within a predetermined range; and transmitting the modified subset. 种通过引入噪声来混淆粒度交易数据的方法，包括：存储交易数据条目，其中，每个交易数据条目都包括交易数据值，该交易数据值至少包括交易金额和商家标识符；接收包括选择标准和期望度量的数据请求；基于该选择标准识别