Distributed denial of service (DDoS)

 This type of cyberattack occurs when a computer or a network is plagued with massive numbers of requests for access. The system is flooded by requests that attackers can generate using hijacked servers and computers. Servers are unable to handle all these requests and fail as a result. Hackers often do this by exploiting Domain Name System (DNS) servers, which are essential for connecting the world’s computers. With DNS attacks, attackers can redirect thousands if not millions of computers to their targets’ servers. This attack aims to make a service such as a website unusable by “flooding” it with malicious traffic or data from multiple sources (often botnets).

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