I have received numerous emails during the last week similar to the one below. Is it possible my email account has been hacked? If so, can anyone advise me how to resolve the problem.
On the basis of what you have posted then yes, your account username and password may well be being used to send out these spam messages.
There is advice as to what to do next here: http://help.virginmedia.com/system/viewArticle.jsp?uuid=2080958B-EA85-40B5-B338-694D2F2ADA1B