  The possibility of attaining current position of the message sender without
person's consent seriously compromises the secrecy of correspondence. Classical
communication systems cannot guarantee the security of communication against
unwanted location tracking, because the sender must broadcast a signal at the
moment of sending the message. The source of the signal could be always
located, at least in principle. We show that quantum communication enables
sending the message with pre-distributed entangled quantum systems, local weak
measurements, time synchronization between the sender and the receiver and
classical communication by the message receiver alone, therefore, physically
securing the sender's location.
