This question is an exact duplicate of:

I'm wondering if it is possible for an attacker to spoof his IP address to look like mine. For example, in Facebook's connection logs, would it be possible for an attacker to log into my account while appearing to use my IP address?

Lastly, if this can be done what can I do to identify and protect myself from it?

marked as duplicate by Rory Alsop Mar 9 at 17:49

This question was marked as an exact duplicate of an existing question.