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DDoS Attacks & Defense

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What is a DDoS attack?

A Distributed Denial of Service (DDoS) attack overwhelms a target with traffic from many sources, making it unavailable to legitimate users.

DoS (Denial of Service) = one attacker. Easy to block — block the IP. DDoS = thousands to millions of sources simultaneously. Impossible to block all sources.

Attackers use botnets — armies of compromised devices (PCs, IoT cameras, cloud instances) coordinated via a C2 server (Command and Control).

Packets in motion — click to inspect:

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