Abstract: Systems and methods for initiating an action based on electronic activities of a user. Generally, a computing device receives a policy for enabling cryptographically secure tracking of electronic activities of a user and a particular electronic computing device. The policy can include definitions for a multiple actions to be taken with respect to certain electronic activities resulting from interaction by the user with the at least one computing device. The computing device can identify a particular electronic activity resulting from user interaction with the at least one computing device. The computing device can determine a particular action to take by applying the policy to the particular electronic activity. The computing device can initiate the particular action with respect to the particular electronic activity.

Abstract: Systems and methods are disclosed that receive a search request with one or more data items to search against filters. Masked versions of the data items are generating using a first predetermined algorithm. The masked versions can be transmitted to another computing device to be secured. Query data can be generated by applying a second algorithm to the secured version of the data items. The query data can be transmitted to a storage system to query the filters to identify search results.