Abstract: Techniques for issuing proximity warnings for services are provided. A first location associated with a requestor that makes a request to a remote service is determined. A second location associated with the remote service is resolved. The first and second locations are compared. In response to the compare, a decision is made as to whether a warning message is issued to the requestor or as to whether the request is passed through to the remote service for processing.

Abstract: Methods, systems, and data structures are provided for selectively securing data within a message. A single message includes data. The data can be text data, attachment data, audio data, image data, or video data. Portions of the data are selectively identified with intended recipients. Multiple versions of the message are produced using the selective portions of the data. Each appropriate version of the message is delivered to the intended recipients. In one embodiment, the selective portions of the data are presented as links in the versions of the message, such that when an intended recipient accesses the link, the accessing recipient is first authenticated before being granted access to the selective portions of the data.