2. The apparatus of claim 1 wherein: the protection system further includes an interface; and the hardware controller queries the web service through the interface for past communications between the user and the web service.
1. An apparatus comprising: a protection system comprising a hardware controller implemented in a network in a data path between a device of a user and a web server that provides a web service; the hardware controller intercepts communications exchanged between the user and the web service over the network, identifies text in the communications between the user and the web service, and identifies subjects discussed in the text; the controller communicates with the device to display the subjects to the user and determine which of the subjects are sensitive to the user, and interacts with the web server over the network to delete a history for the user from the web server that relates to the sensitive subjects.