Change my IP address

[zookeeper420]

It seems that someone who did some "computer work" for my mother has used her IP address and used it for identity theft. Is that possible? To use someone elses IP address from another location? How can I go about changing her IP address? I have googleed it several times and tried multiple differnt approaches. If someone could help me shed some light on the subject I would really appreciate any help at all. Thank you in advance. Feel free to e-mail me:zookeeper420@gmail.com

[Metgod]

Yes it is possible. And besides that what if they did their deed while doing the work for her computer?
Changing IP: depends on how it is assigned by the service provider.