An indirect free cooling module and method for cooling air from a data center is provided. The signal-receiving system includes a fiber array, a photomultiplier and a digital oscilloscope. The TSS stores both the current and future states of the webpage, based on user interaction. A second die is attached to a second surface of the interposer such that the second die is stacked onto the first die and is electrically coupled to the first die by the contact and conductive paths that are part of the interposer. In addition, computer traffic in the network and from the intrusion source may be modified or stopped to guard against an intrusion, prevent an intrusion, and remedy a successful intrusion.