The invention relates generally to in vivo collection of circulating molecules, tumor cells and other biological markers using a collecting probe. The device further comprises a variable control component that is electrically coupled to the switch such that when the latch is activated into one of the N modes, the switch pole is caused to be electrically coupled to one of the receiving terminals allowing electrical energy at the pole to be routed through the switch to one of the receiving terminals. Prevention is done according to HTTP traffic parameters that are analyzed once a traffic anomaly is detected.