I dont use the App Store account but noticed a few days ago that it says i have an upgrade available. I just went to click on it to see what this was about and it showed me an email address that is definitely not mine but said i had to log into that account and then said i had 4 others to log into as well. I am going to assume that someone, has someone got into it via my laptop? Is this possible? But no one has been physically near mine and what wold the point be otherwise? And if so, how do i get rid of the balloon that is telling me log into some account ? I can post a screenshot of the email address showing if necessary......?