What Is a Botnet?
A botnet is a network of computers or devices that have been infected with malware and are controlled by a hacker, often without the owner’s knowledge. These infected devices, also called “zombies,” can be used for malicious activities such as sending spam emails, stealing data, or launching distributed denial-of-service (DDoS) attacks. Botnets are typically operated remotely, allowing hackers to control many devices at once for various illegal purposes.
How a Botnet Works
Botnets operate by infecting devices with malware, which then connects them to the botnet’s command and control server. Once connected, these devices can be remotely instructed to perform tasks such as sending large volumes of spam, mining cryptocurrency, or overwhelming a target with traffic. Botnet operators can control thousands or even millions of infected devices, making them a powerful tool for cybercriminals.
Why Botnets Matter
Botnets are a major threat to cybersecurity because they allow hackers to launch large-scale attacks without needing to directly access targeted systems. They can be used for financial gain, disruption, or data theft, making them a serious issue for individuals, businesses, and governments. Understanding botnets is crucial for improving defenses against cyberattacks and protecting digital privacy.
The Simple Takeaway
A botnet is a network of infected devices controlled by hackers to perform malicious tasks like sending spam or launching cyberattacks, posing a serious security threat.