DNSSEC, or Domain Name System Security Extensions, is a suite of extensions to DNS that provides an added layer of security by enabling the verification of the authenticity of DNS responses. This helps prevent attacks such as cache poisoning, where incorrect information is injected into the DNS resolver’s cache, leading users to malicious sites instead of legitimate ones. By using cryptographic signatures, DNSSEC ensures that the data received is genuine and hasn't been tampered with during transmission.
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