How do I ensure money or other valuables (such as my IP address) won't be stolen?

Hi, my name is Courtney and I would be happy to help.

I'm sorry to hear that someone stole your account. I know how frustrating it can be when this happens. Let's say that the only alternative you have at this moment to recover your account is through the account recovery form (If your information was deleted, unfortunately there is nothing to do), I have also been through this situation, so I can give you some recommendations:

The first thing is to enter information that the account has, in case a phone number or card has been deleted, you should simply omit that information and not add it to the form. That said, you can enter the following link:

https://account.live.com/acsr

Please note that Support cannot help recover accounts, but in that case, if you want to contact them and talk in a live chat for more detailed information, you can access the following link.

Support: https://support.xbox.com/contact-us/

You mentioned that you want a way to secure your account so that this does not happen again, one of the methods recommended by Microsoft is to activate two-step verification (MFA), remember that this is a public Microsoft forum, where we are gamers like you We try to guide/help other players solve basic problems they have, this means we are not employees of Microsoft.

Information source (Credits): https://answers.microsoft.com/thread/50d0d753-c765-4478-933f-8e005c780dd0

I hope this information has been useful to you.

Best regards,
Courtney.

Did you turn off UPnP and ensure the Xbox has a static ip address? If so and you've forwarded the ports to that static ip address it should

Wow this is complicated, i'll turn off UPnP. How do I do the static IP bit? Sounds a bit like I am delving into crap I need not be medelling in...

OBTW, if he got your name and address, it's because he obtained your password from somewhere, and I also suggest going to
account.live.com/.../reset and changing your password. Then, discuss this with the Xbox LIVE agents (Option 2) which you can call by dialing the number listed for your country at
http://tinyurl.com/XBLnumbers

Also,calling out other gamertags is not allowed on the forums.

This should change your external IP address:

0) From a computer visit www.ipchicken.com to check to see what it is

1) turn off the Xbox and unplug the power supply cord from the back of the Xbox then

2) unplug power from the router (Some folks have a combination modem-router AKA 'gateway' or only use a modem with no router. If either, skip steps 3 & 6).

3) unplug power from the modem.

4) Wait at least 5 minutes then replug the modem/gateway power.

5) Wait 'til the light on the front of the modem/gateway which says BROADBAND, ONLINE, READY, CABLE or DSL is on solid (not flashing), then plug in the router. If you have a gateway instead of a modem and router or a modem with no router, then when that
light says it's ready, skip to step 7.

6) Wait until the WiFi light on the router is on; you may or may not use WiFi, but it's still a good indicator your router is finished booting up.

7) Plug in and turn on the Xbox.

8) From a computer, revisit www.ipchicken.com - if not different that seen before iin step 0) please call your ISP to ask them how to change the external IP address.