Privacy ensuring personal health record data sharing

A non-transitory computer readable storage medium comprising instructions that, when executed by one or more processors, causes the one or more processors to:

• receive a request from a first computing device for access to information related to a first user data set;
• determine, or receive an indication of a determination, whether the first computing device can access the information based on criteria for sharing information, the criteria based on one or more characteristics of the first user data set and a second user data set accessible by the first computing device;
• and
• provide a response based on the determination, the response preserving privacy of a user corresponding to the first user data set.

A computer-implemented method, comprising:

• receiving at an apparatus a request from a first computing device for access to information related to a first user data set;
• determining, or receiving an indication of a determination, whether the first computing device can access the information based on criteria for sharing information, the criteria based on one or more characteristics of the first user data set and a second user data set accessible by the first computing device;
• and
• providing a response based on the determination, the response preserving privacy of a user corresponding to the first user data set.