Hackers utilise multiple infected computer systems (i.e. Botnet) to generate huge volumes of traffic, overloading the

What is Distributed Denial of Service Attack?

Distributed denial of service attack (DDoS) evolves from the traditional denial of service attack (DoS).  Hackers utilise multiple infected computer systems (i.e. Botnet) to generate huge volumes of traffic, overloading the target servers or exhausting all available server resources, resulting in server crash and disruption of service.  It is like an unexpected traffic jam clogging up the highway, preventing regular traffic from arriving at its destination.

What is a “Botnet”?

When computer devices are infected and controlled by a malware, they become members of a “Botnet”.  A “Botnet” can be formed by thousands of devices.  These manipulated devices together can orchestrate destructive and meticulous attacks, for example, sending hundreds of millions of spams, DDoS with huge bandwidth and financial fraud.  Infected IoT devices (e.g. web cameras, routers, smart TVs) may also become members of a Botnet.

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