A botnet is a network of compromised devices intended to launch a high volume of attacks toward a target server. A bot is any digital device that is completely under the control of an attacker (the “bot master”) without its owner’s knowledge. It does anything the bot master commands, such as spam other computers, spread fake news, or bombard a server with random data.
With a botnet, an attacker can send out a torrent of spam, for example, that is more devastating than what a single device can manage. The attack relies on an overwhelming number of bots to cause as much damage to the target as possible.
Think of it this way: if you get stung by a single bee, it will definitely hurt. But if you get stung by an entire swarm of them, it could be fatal.
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