At the first of the month
we reported that Microsoft would be ending its support of their XP operating system. As of April 8, this took effect. Since then there have been reports of different attacks, with more surely to come. This
PC World article discusses the issue in detail and gives some simple suggestions for staying safe until you can upgrade your operating system.
Luckily, Windows XP users can easily mitigate this vulnerability by simply using any Web browser but Internet Explorer. For longtime IE users on XP, turning to Google Chrome of Mozilla Firefox would be your best bet, both immediately and going forward.
-PC World
Full PC World article.