How can I allow only my phones and my computers access my hot spot?

[JERRIE_G]

I gave my access code to a friend while he was staying with us, and he continues to use it after he has moved, but is still very close to my home. How can I stop him from using my data?

[Weth · Accepted solution]

You must change your SSID password on the hotspot. If you tell us what hotspot you have we can tell you specifics on how to get in.

I would change both your SSID and the password.