DNS is essential for nearly all internet communications, from browsing websites to sending emails and making VoIP calls. If attackers disrupt access to a service provider’s DNS servers, subscribers can be blocked from the internet or critical services. Similarly, enterprise DNS failures prevent users from accessing web, mail, and other resources. Beyond outages, cybercriminals exploit DNS servers by poisoning caches to redirect users to malicious sites. These vulnerabilities highlight the need for robust DNS security to ensure reliability, prevent service disruption, and protect against evolving threats.

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