My hotmail account has been hacked...

.. or something.... so annoying!!!! Just notice that I received a lot of out of office messages and saw in my sent box that my hotmail account has sent emails to everyone in my contacts saying:

I lost 18lbs with this‏

Do not open this email if you have received one from me, it is a spam and will infect your emails too... Why do people come up with spams... so annoying and embarrassing when it emails work connections, old boyfriends, old bosses, etc.... I have now deleted all my contacts from my addressbook so that it can't send out any more messages and also I have changed my hotmail password which is also a pain because I need to re-set up hotmail on computer, iphone, ipad..... I am soo much happier with my gmail account (my new email).