The main purpose of a botnet in cybercrime is to orchestrate large-scale attacks or illicit activities by leveraging a network of compromised computers or devices. These botnets can be used for various malicious purposes, including launching Distributed Denial-of-Service (DDoS) attacks, spreading malware, or carrying out automated fraud schemes. By controlling many devices simultaneously, cybercriminals can execute attacks with greater effectiveness and anonymity. Botnets can also facilitate the theft of sensitive information or help distribute spam, thereby posing significant challenges for cybersecurity efforts and necessitating robust protective measures from organizations and users alike.