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My wifi is used by many people so I have no proper solution against them. I can see their mac address. I want them to stop using my wifi.

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    See this. Feb 18, 2015 at 7:35
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    password-protect your wi-fi? =)
    – Mints97
    Feb 18, 2015 at 7:37
  • Use a proper WiFi protection protocol (WPA2), change your passphrase and use a non-guessable one, and maybe change the SSID of the network to something like "HONEYPOT" :-). Additionally, you can turn on MAC filtering if available. Not great protection, but it's on top of the rest, and it's free.
    – LSerni
    Feb 18, 2015 at 8:16

1 Answer 1

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If you want to stop them using your wifi you should increase your security, not hack them. In your router's wifi section there is a built-in mac filtering system that you can enable. You need to add your devices' mac address to the list and pick a mode. There are two main filtering modes there:

  • Allow (whitelist): Allow mac addresses in the list, deny everyone
  • Deny (blacklist): Deny mac addresses in the list, allow everyone
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    Note that MAC filtering is useless against most attackers: it's trivial to figure out what addresses are valid and set a wireless card to use one of the valid ones.
    – Mark
    Feb 18, 2015 at 9:50

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