Don´t think you need to be a MIT graduate in computer science to understand that storing confidential personal information, state secrets, doing credit card transactions & online banking etc is NOT a good idea on any XP PC regardless of the browser being used. The hackers can´t steal what´s not there and if they lock up your drive with ransomware no big deal. No important info on there anyway. As in all things common sense rules the day. After all weŕe just having fun ... aren´t we?