Back in 2010 I used to work on my projects, assignments and access my email account from shared computers. A certain day I realised my Hotmail (email) inbox, drafts and sent box were full of copies of a message, which had an attachment containing a virus. Most of my email contacts have also received a copy of the message sent from my account. I can't say precisely if my account was invaded by an individual or if it that was the result of a virus. I don't know if this could be classified as an infection but that was my last relevant incident I can remember.