The email will contain the IP address of the computer attempting to access your account. If you would like to verify that the IP address of the attempt matches your own (and thus can accurately/confidently allow it access – and not a hacker!) go to the following website:
http://whatismyipaddress.com/
It will tell you your IP address so you can double check it with the email. Also, go to your account information on guildwars2.com and check the ‘security’ tab to make sure there aren’t any foreign IP’s (meaning any IP except one you want) that have tried to access your account~
