Yes, or if your fast, cheap new metro ethernet 10GbE circuit between two buildings has been provisioned by your ISP as some form of transport (handoff into a WDM system, EoMPLS tunnel), etc, it&#x27;s not difficult for them to &#x27;mirror&#x27; your port. It could be pre-tapped before it was ever turned up for customer service.<p>Or the splitter could be installed in your riser cable at one end, before you ever started moving packets across it.<p>Or a myriad of other things.