PC-cillin displays different warnings to announce different kinds of threats. For example, the Suspicious Software Alarm System will show a warning upon detecting unusual changes made to your computer. If you enable Protection Against Phishing, a warning appears whenever you try to open a Web site that exhibits characteristics associated with phishing scams.

• Red warnings indicate a serious danger. These warnings need your immediate attention. Take the recommended action immediately.
• Yellow warnings serve to caution you about suspicious changes made to your computer, or other potential risks. Your responses to these warnings help improve the overall accuracy of your protection system.
• Blue warnings provide confirmations of actions successfully taken, as well as friendly reminders.

To disable or reduce the number of blue warnings you receive, click Other Settings on the main console and then click the Settings... button under Notification and Tutorial Preferences. A link in the red and yellow ones opens instructions to disable that particular warning.