Microsoft has announced that all versions of IE from 6 to 11 are open to an attack which will let the hacker take over a computer with Administrative rights.
https://technet.microsoft.com/en-US/lib ... ty/2963983
It is reported that users of XP are particularly vulnerable, more so than users of W7 and W8, so it might be time to upgrade as XP is no longer supported.
There is the usual advice about e-mails and clicking on links in web sites. Currently there is no patch available so make sure your Windows updates are up-to-date and stay away from places you are not sure of.