A system may comprise one or more processors. The one or more processors may store data, associated with a plurality of documents, as stored data and may receive documents from a plurality of client devices. The documents may include a plurality of different types of data. The one or more processors may assign the documents to one or more groups based on the plurality of different types of data and may identify a group of documents of the one or more groups. The one or more processors may compare data, within documents in the group of documents, to the stored data and may transmit, to one or more devices, a result of comparing the data to the stored data.