A rule for viewing HardwareID of other users. If a user have several online devices, then all of them will be displayed.


HardwareID is a unique text string that depends on the user's device hardware. If it is a computer, then a link between processor and serial number of a hard drive. If it is a mobile device, then it's a unique identifier linked to a phone or tablet.


HardwareID peculiarity: even if  you perform clean re-install of the application, HardwareID still remains the same.


It is convenient, because you can reliably identify and block its connection attempts, because you can't change HardwareID, unlike IP or MAC addresses.