Can you tap into your neighbors cable internet?

I don't mean for stealing bandwidth, more like intercepting packets.

"Being a point-to-point medium, ADSL is inherently more secure than cable.

Any cable user can easily read all the packets going down the cable. For this reason, any decent cable provider will encrypt all traffic in both directions. Nevertheless, having your neighbor get your encrypted messages is still less secure than having him not get anything at all."

This is from a book on computer networks by Andrew S. Tanenbaum

So i understand the packets are most likely encrypted if not by the cable provider at least by https, but even then is this really possible? how would you go about doing it? 

Asking for research only of course.

3 Answers

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  • 4 weeks ago

    "Easily" is a bit of an overstatement. But yes, (TV) cable is basically a shared medium. You'd need to hack (or build your own) cable modem in order to extract all the raw data visible on the cable.

    I'd start by reading the cable modem protocol specification https://www.cablelabs.com/technologies/docsis-3-1

  • Pearl
    Lv 7
    4 weeks ago

    i would only do it with their permission

  • 4 weeks ago

    You can actually purchase a directional Wi-Fi antenna and some software called Binney off of eBay this software supposed to be for security testing only it quickly will crack any nearby Wi-Fi codes. Don't get caught doing this you can get into big trouble

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