Restricting communications between subscriber machines

A system that transfers information between subscribers associated with a communication service, the system comprising:

• a computing device comprising:
• a processor and a memory;
• a server computer that interfaces with the computing device, the computing device configured to:
• receive a first handle address associated with a first subscriber device, the first handle address being a first proxy address distinct from an assigned first IP address, the first subscriber device transferring information to a group of subscriber devices, each of the group of subscriber devices being linked to different handle addresses, each of the different handle addresses being included in a group of handle addresses, the different handle addresses being proxy addresses distinct from IP addresses assigned to the group of subscriber devices;
• determine whether the first handle address is included in the group of handle addresses;
• determine an encryption of the first subscriber device based on whether the subscriber device is associated with an individual encryption or with encryption of the group of subscriber devices;
• transmit information from the first subscriber device to the group of subscriber devices in response to the first handle address being included in the group of handle addresses based at least on the encryption of the first subscriber device as determined by the processor;
• verify whether the transferred information was received by the group of subscriber devices;
• request a general exclusion of membership in the group of subscriber devices;
• and
• grant an exclusion of membership in response to acceptance of an encrypted exclusion offer.

A computer-readable device storing instructions that, when executed by a processing device, cause the processing device to perform operations comprising:

• receiving a first handle address associated with a first subscriber device, the first handle address being a first proxy address distinct from an assigned first IP address, the first subscriber device transferring information to a group of subscriber devices, each of the group of subscriber devices being linked to different handle addresses of the group of handle addresses, each of the different handle addresses being included in the group of handle addresses, the different handle addresses being proxy addresses distinct from IP addresses assigned to the group of subscriber devices;
• determining whether the first handle address is included in the group of handle addresses;
• determining an encryption of the first subscriber device based on whether the subscriber device is associated with an individual encryption or with encryption of the group of subscriber devices;
• transferring information from the first subscriber device to the group of subscriber devices in response to the first handle address being included in the group of handle addresses based at least on the encryption of the first subscriber device;
• and
• verifying that the transferred information was received by the group of subscriber devices;
• requesting a general exclusion of membership in the group of subscriber devices;
• and
• granting an exclusion of membership in response to acceptance of an encrypted exclusion offer.