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Yes. A Harris Stingray, Boeing DRT box, or other cell simulator can intercept SMS messages. These are monitoring devices that have secretly been used by police agencies for over a decade. They come with strict non-disclosure agreements where the agencies that purchase them are not even allowed to acknowledge their existence to the public, and certainly ...


NMAP has a sniffer-detect script built-into it, it's probably the most simple solution out there. I have seen no comparison of the two tools on their effectiveness. Note that all these solutions do is try and find interfaces running promiscuous mode, there are many ways to sniff a network which would leave no traces at all, for instance taps and spans.

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