Microsoft warn of vulnerability in Internet Explorer
If you have versions 6 to 11 of Internet Explorer, then you could be affected. Over 50% of people who use IE fall within this bracket.
Microsoft are investigating the vulnerability and have promised to take the appropriate steps to sort it all out.
They said that the steps "may include providing a solution through our monthly security update release process, or an out-of-cycle security update, depending on customer needs".
The hackers looking to exploit the weakness could host a "specially crafted website" containing content that can help them do so, but they'd have to convince you to look at the site for them to get access to your computer. Basically, if you smell something dodgy with any links sent via email or IM, as ever, don't click on it.
Mercifully with this flaw, hackers have no way of forcing a user to view the content on the iffy website.
"If the current user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system," said Microsoft. "An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights."
To the mad people still using IE, try and stay vigilant, eh?