Abstract: Methods, systems, and computer-readable media for anonymizing electronic documents. In accordance with one or more embodiments, structurally-similar electronic documents can be identified among a group of electronic documents (e.g., e-mail messages, documents containing HTML formatting, etc.). A hash function can be specifically tailored to identify the similarly structured documents. The structurally-similar electronic documents can be grouped into a same equivalence class. Masked anonymized document samples can be generated from the structurally-similar electronic documents utilizing the same equivalence class, thereby ensuring that the anonymized document samples when viewed as a part of an audit remain anonymous. An online process is provided to guarantee k-anonymity of the users over the entire lifetime of the auditing process. An auditor's productivity can be measured based on the amount of content revealed to the auditor within the samples he is assigned.

Abstract: A system, a method and a computer program product for transmission over a network, the method includes: receiving, by an intermediate system coupled to the network, a portion of a data structure that is aimed to a recipient computer; generating a stamp that is responsive to a content of a segment of the data structure and is indifferent to transfer information about a transmission of the data structure; wherein the portion may include the segment or equals the segment; determining, by the intermediate system, whether to cache the portion, in response to at least a comparison between the stamp and stamps of cached portions of data structures; selectively caching the portion in response to the determination; and transmitting to the recipient computer either one of the portion of the transmitted data structure and a cached version of the portion of the transmitted data structure.

Abstract: A method for providing information to a client over a peer-to-peer network, the method includes: receiving, by a tracker proxy, a re-directed first request of a client to access a tracker; and sending, by the tracker proxy, a first response that identifies a network cache as a peer. A method for providing a video file to a client, the method includes: receiving a request of a client to retrieve a video file from a web site or another external source out of multiple requests that are sent to multiple information sources; and providing to the client cache a first response that identifies a network cache as a source of the video file.

Abstract: A system, a method and a computer program product for transmission over a network, the method includes: receiving, by an intermediate system coupled to the network, a portion of a data structure that is aimed to a recipient computer; generating a stamp that is responsive to a content of a segment of the data structure and is indifferent to transfer information about a transmission of the data structure; wherein the portion may include the segment or equals the segment; determining, by the intermediate system, whether to cache the portion, in response to at least a comparison between the stamp and stamps of cached portions of data structures; selectively caching the portion in response to the determination; and transmitting to the recipient computer either one of the portion of the transmitted data structure and a cached version of the portion of the transmitted data structure.

Abstract: The invention contains an application operating environment in which acceptable and/or suspect activities may be defined for an application so that unacceptable application behavior can be prevented. This is done by providing a definition table identifying the types of access and actions that the application is allowed and preventing it from carrying out other types of access and actions. The definition table may be built up using a learning process during use of the application. The environment also provides a means of checking information output to a network against a list of confidential information.

Abstract: The invention contains an application operating environment in which acceptable and/or suspect activities may be defined for an application so that unacceptable application behavior can be prevented. This is done by providing a definition table identifying the types of access and actions that the application is allowed and preventing it from carrying out other types of access and actions. The definition table may be built up using a learning process during use of the application. The environment also provides a means of checking information output to a network against a list of confidential information.