Abstract: Evaluation of security of a communication system. The security of the communication system is continuously monitored and the result of this assessment is indicated. In particular, characteristic security information provided by a communication partner may be continuously received and evaluated for determining the security status. In this way, a change of the security status can be immediately recognized. Thus, a transmission of sensible or confidential data over an insecure communication network can be avoided.

Abstract: Evaluation of security of a communication system. The security of the communication system is continuously monitored and the result of this assessment is indicated. In particular, characteristic security information provided by a communication partner may be continuously received and evaluated for determining the security status. In this way, a change of the security status can be immediately recognized. Thus, a transmission of sensible or confidential data over an insecure communication network can be avoided.

Abstract: A communication system comprises a transmitter and a group of recipients. The transmitter is configured to transmit a message and/or a command to the group of recipients. The system is configured to analyze sensor data assigned to each recipient of the group of recipients. The system is further configured to automatically select one recipient of the group of recipients based on the sensor data analyzed. The selected recipient is configured to automatically respond to the transmitted message and/or command. The system is further configured to automatically rank all recipients of the group. Moreover, other communication systems are described.