"コードレッド" (Code Red) is a term often used in emergency situations to indicate a serious threat or urgent response needed. It is commonly associated with fire alarms, medical emergencies, or security alerts in various institutions, including schools and hospitals. The term signals that immediate action is required to ensure safety. In the context of cybersecurity, "コードレッド" refers to a specific computer worm that affected Microsoft IIS servers in 2001. This worm exploited vulnerabilities, allowing unauthorized access and potential data breaches. It highlighted the importance of cybersecurity measures and the need for regular software updates to protect against such threats.