What is "DNS Spoofing"?

DNS spoofing, also known as DNS cache poisoning, refers to the technique where malicious actors manipulate the Domain Name System (DNS) responses in order to redirect traffic. This technique involves inserting false DNS records into the cache of DNS resolvers, which can lead users to fraudulent websites, potentially resulting in phishing attacks, malware distribution, or other forms of cybercrime.

In this context, when someone's device attempts to resolve a legitimate domain name, such as "www.example.com," the manipulated DNS records can direct the user to a compromised or counterfeit site instead. This redirection occurs without the user's knowledge, making it a serious threat to cybersecurity.

The other options do not accurately describe DNS spoofing. Securing DNS records would involve methods to prevent tampering and ensure authenticity, which is contrary to the act of spoofing. Speeding up DNS queries pertains to performance enhancements, while legitimate domain registration does not involve deceptive practices like spoofing. Thus, the definition that focuses on redirecting traffic to compromised sites aligns perfectly with the core concept of DNS spoofing.