Get another patch!

You need this latest "critical" patch for your (Windows) PC if you use Microsoft's Internet Explorer browser. A critical flaw in IE could allow malicious hackers to take control of your computer, Reuters reports. You don't need it if you're one of those extra-careful and/or tech-literate folk who have already downloaded Microsoft's comprehensive Service Pack 2 for PC security. Otherwise (or if you have any questions), go to Windows Update and just scan your system to see what it needs to be up-to-date. (If you have a high-speed connection, I hope you also have firewall and anti-virus software installed!) Reuters says MS issued this patch outside its regularly scheduled security update cycle - another sign that it's important.