Definition - What does Honeynet mean?
A honeynet is a vulnerable and simulated computer network using a decoy server designed to test network security. Honeynets are developed in order to help computer security experts to improve security for networks and systems. Although it may appear to a hacker as a legitimate network, it is actually hosted on a single server. By design, honeynets are not authorized for any authentic uses. If a honeynet is accessed, a fair assumption is that the person accessing it is a hacker.
Techopedia explains Honeynet
Honeynets purposely include system vulnerabilities and aid in better understanding hacker and cracker behavior (and the motivations behind their behaviors). With honeynet operations, computer analysts do not have to sift through many legitimate network users, as they would with actual system networks. Thus, honeynets allow hackers to be easily identified.