I received a message from google saying they had prevented a hacking attempt. However I then received messages from friends saying that they had received spam from my gmail account. If you go to the security tab of gmail it lists
"Application/device sign-in attempt (prevented) London (UK)"
The email from Google also lists an IP address which I am not sure I can post here. Is there some way to get information on whose IP address it could be? For example, if it is an office or a mobile or a home IP address?