Threats to DNS and Their Impact on Business

This white paper discusses the various threats to the Domain Name System (DNS) and their implications for businesses. It begins by outlining the critical role DNS plays in connecting users to online resources and highlights the increasing frequency and cost of DNS attacks, particularly in the context of digital transformation accelerated by the COVID-19 pandemic. The document categorizes DNS attacks into three main types: those that deliver false answers to DNS queries, those that prevent any answers from being returned, and those that exploit DNS as a transport mechanism. Each category is examined in detail, including specific attack methods such as cache poisoning and domain hijacking. The paper emphasizes the importance of having a robust defense strategy against these threats, including the implementation of Domain Name System Security Extensions (DNSSEC) to validate DNS responses and ensure data integrity. It concludes by stressing the need for organizations to be aware of their DNS security posture and to prepare adequately for potential attacks.