The organization that Greg works in finds that one of their domains is directing traffic to a competitor's website. When Greg checks, the domain information has been changed, including the contact and other administrative details for the domain. If the domain had not expired, what has MOST LIKELY happened?

Domain hijacking, or domain theft, occurs when the registration or other information for the domain is changed without the original registrant’s permission. This may occur because of a compromised account or due to a breach of the domain registrar’s security. A common issue is a lapsed domain being purchased by a third party, this can look like a hijacked domain, but it is a legitimate occurrence if the domain is not renewed! DNS hijacking inserts false information into a DNS server, on-path (man-in-the-middle) attacks capture or modify traffic by causing the traffic to pass through a compromised midpoint, and zero-day attacks are attacks that use an unknown until used vulnerability.