Method for the dynamic management of at least a verbosity level (N Cp ) of at least one component (C p ) defined in a data network, said data network having a control centre (SUPERV), each component ((C p ) pe[1;m] ) permitting the execution of a set of tasks and comprising a security management configuration associating a status message, called a log, with the execution of a task (Tp k ) by said component, each log (LOG pk ) associated with a task indicating at least one event and having a local level (N Lk ), a log (LOG pk ) being sent to the control centre (SUPERV) when its local level (N Lk ) is superior to the verbosity level (N Cp ) of the component, the control centre (SUPERV) collecting a set of logs for the supervision of the said network, the control centre (SUPERV) comprising a memory in which are stored: • a set of components ((CP)Pe[1 ;m]) of the network and for each component (Cp) a first verbosity level (NCp ) associated with it and • a set of investigation scenarios including predefined stimuli, each predefined stimulus being associated with a recommended verbosity level. said method including: • a detection of a stimulus by the control centre (SUPERV), the stimulus corresponding to at least one event identified by a received log ; • a determination of at least one component (C p ) associated with the stimulus detected by the control centre (SUPERV); • a first change of said verbosity level of said component from the first verbosity level (N Cp ) to a second verbosity level (N Cp ) during a first given period (T 1 ), said change being engaged by the generation of a supervision command (MODIF(Nc)) by the control centre (SUPERV), said second verbosity level (N Cp ) being defined according to the detected stimulus, the second verbosity level (N Cp ) of the component (C p ) being comprised between the first verbosity level (N Cp ) and a maximum verbosity level of said component (N Cp (Max)), the value of the second verbosity level (N Cp ) being generated as a function of an identified investigation scenario as a function of a determined stimulus comprising at least one event identified by a received log a of a performance data of said component associated to said log taken into account in the determination of the stimulus. • a set of components ((CP)Pe[1 ;m]) of the network and for each component (Cp) a first verbosity level (NCp ) associated with it and • a set of investigation scenarios including predefined stimuli, each predefined stimulus being associated with a recommended verbosity level. • a detection of a stimulus by the control centre (SUPERV), the stimulus corresponding to at least one event identified by a received log ; • a determination of at least one component (C p ) associated with the stimulus detected by the control centre (SUPERV); • a first change of said verbosity level of said component from the first verbosity level (N Cp ) to a second verbosity level (N Cp ) during a first given period (T 1 ), said change being engaged by the generation of a supervision command (MODIF(Nc)) by the control centre (SUPERV), said second verbosity level (N Cp ) being defined according to the detected stimulus, the second verbosity level (N Cp ) of the component (C p ) being comprised between the first verbosity level (N Cp ) and a maximum verbosity level of said component (N Cp (Max)), the value of the second verbosity level (N Cp ) being generated as a function of an identified investigation scenario as a function of a determined stimulus comprising at least one event identified by a received log a of a performance data of said component associated to said log taken into account in the determination of the stimulus. <EOS>