Describe what a botnet is.

A botnet is best defined as a network of infected computers that are controlled by an attacker to perform malicious activities. This means that an attacker infects multiple computers with malware, enabling them to be remotely managed and utilized for various harmful tasks. Such tasks may include launching distributed denial-of-service (DDoS) attacks, sending spam emails, or stealing sensitive information from unsuspecting users.

The magnitude and the anonymity that a botnet provides makes it a popular tool for cybercriminals, as they can orchestrate large attacks without the need for direct access to a large number of computers. Each compromised device, often referred to as a "bot" or "zombie," acts under the control of the cybercriminal, allowing for coordinated and powerful attacks.

Understanding the nature and function of botnets is essential in cybersecurity, as they pose a significant threat to both individuals and organizations, demonstrating the importance of network security measures and the need for vigilance against malware infections.