Close loop control system, Passive attack & Active attack

CLOSE  LOOP CONTROL SYSTEM :

The control system in which the output has an effect upon the input quantity so as to maintain the desired output are called closed-loop control system

PASSIVE ATTACK :

In passive attack,  Attacker observe the message without modification.  Monitored the transmitted data & read the information. It does not make any change in data & the system.  not disturbe the communication  channel & neither affect information

                                 

                                                      

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