Just looked at a hotmail account i have that very rarely gets used. There is an email to me on there saying welcome to the playstation network. Someone has signed up to the network using my hotmail account. Should i be worried about this. Should i cancel my account. This is the first time i have looked at it in about 3 month and this email is from september. I am now worried as dont really understand the security implications. The account gives someones name and address.
Thanks in advance.