Detection refers to the process of identifying the presence of a particular object, signal, or condition within a given environment. This can involve various techniques and technologies, such as sensors and algorithms, to analyze data and determine whether a specific target exists. For example, in medical imaging, detection is crucial for identifying diseases early on. In the realm of computer science, detection plays a vital role in cybersecurity, where systems are designed to identify potential threats or breaches. Techniques like intrusion detection systems monitor network traffic to flag unusual activities, helping to protect sensitive information and maintain security.