Both Microsoft and Apple have released critical security updates. They address several vulnerabilities and should be installed as soon as possible. If you are using a Windows computer, run Windows Update, found under the Start menu. Let Update scan your computer and it will display the updates you need. If you're using a Macintosh computer, run Software Update, which can be found under System Preferences in the Applications folder. After installing the updates you will need to restart your computer. It's a good idea to run these programs once a week to help keep your computer secure.