Patent ID: 8793211

Claim:
A method for optimally sharing information from a sender to one or more recipients comprising: receiving, at a processor device, a parameter information including: identifiers of one or more recipients to receive shared information sent by a sender entity, number of information sharing decision time intervals n where 0≦n<N, and, a reward value for successful sharing and a penalty value for detecting a leakage; and building, using said processor device, a model of a dynamic trustworthiness of each said one or more recipients as a Partially Observable-Markov Decision Process (POMPD), said POMPD model including an initial sender belief state of trustworthiness of each of said recipients; deriving based on said model, an optimal information sharing policy for sharing information with said one or more recipients that maximizes an expected reward for said sender; sharing said information with said one or more recipients, and, updating, in each decision time interval n, said belief state of trustworthiness of each recipient in said POMPD model by: a) monitoring a communications network, using a leakage detection device, for a leakage of said information shared with the one or more recipients; b) observing or not any shared information leakage associated with a recipient; c) computing, for the sender, based on the observing, a policy to share the information among the one or more recipients in a subsequent decision time interval; and, d) sharing, according to the policy, said information among the one or more recipients in the subsequent time interval.