Dell E-Port Plus User Manual download pdf (Page 24)

Figure 41: Thermal image of dock + laptop (no implant) Figure 42: Thermal image of dock + laptop (with implant)

10.6.3 Current consumption

The power consumption will be more if an implant has been added to a docking station. Therefore,

periodically measuring the current consumed by each docking station may reveal one that contains

additional electronics. This could either be measured periodically using a device such as a current

clamp

[37]

or by a current-measuring device placed in-line with the power cable.

Advantages:

With some basic training this could be easily performed periodically and would be difficult for the

implant designer to counter.

Disadvantages:

It would be labour-intensive to periodically check all your docking stations

10.6.4 RF emanations

As the command and control communications channel is via 3G/HSPA then the implant would need

to communicate via RF at a similar power to a mobile phone or tablet. Therefore, these RF

emanations should be detectable.

Advantages:

RF emanations must be present for the out-of-band command and control communications to be

possible.

Disadvantages:

In a modern office environment it would be difficult to discriminate between unauthorised 3G RF

sources and legitimate ones associated with phones, tablets or laptop-based 3G cards.

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Dell E-Port Plus User Manual Page 24