Security experts have discovered a flaw in Java (click here to learn about Java) that allows a remote computer to silently take control of your computer without your knowledge by visiting a website that contains malicious code. The experts that discovered the problem are suggesting that you remove Java from your computer until such time as Java is fixed. It is important to note that the problem affects both PCs and Macs! You can read more about the issue and get instructions to remove Java at this link. I would probably not remove Java if you have version 6, but you need to decide that for yourself. Some of you may have applications that require Java to run so check before uninstalling it.
As always, be sure you have good mal-ware protection and that it is up to date.