I've not used parallels for a good few years as I sold my MacBook. I've just received an email saying my account was signed in from an unrecognised web browser in Italy (I live in the UK). I've changed my password but is there anything else i need to worry about? I'm a little concerned, just this mean that my old MacBook is being used by someone else using my parallels account? I was pretty certain I formatted everything when i sold it.