The Domain Name System (DNS) serves as a protocol for human-friendly domains to be translated into machine-friendly IP addresses - allowing for easy routing of website data onto users’ browsers.
Created in the 1980s, the DNS system was not made with security in mind, and in turn, is a prime target for a variety of malicious attacks, including:
DNS Flood Attacks - When clusters of illegitimate traffic overwhelm a DNS server, targeted websites are left compromised
DNS Spoofing - Through malicious altering of DNS records, hackers are able to redirect website visitors to spoofed, look-a-like versions of queried websites - allowing for easy phishing of customer data
DNS Tunneling - By intercepting communications between browsers and DNS Servers, malware can easily be “tunneled” into users’ computers
DNS Hijacking - Through the hijacking of DNS queries, legitimate web traffic can be rerouted to fraudulent DNS servers