US Patent 10268839 Anonymizing and grouping confidential data from members

In an example embodiment, confidential data submitted by a user and one or more attributes of the user are obtained from one or more submission tables in a confidential information database. It is then determined that the one or more attributes of the user correspond to a first slice. In response to the determining, a count associated with the first slice is incremented. The count associated with the first slice is compared with a first threshold. In response to a determination that the count associated with the first slice transgresses the first threshold, the confidential data and the one or more attributes are added to a backend queue. Then, extraction, transformation, and loading (ETL) of the confidential data in the backend queue is performed and the confidential data is placed in an ETL table, in the confidential information database corresponding to the first slice.