Honeypot
Definition
A honeypot is a deliberately vulnerable system or network designed to attract attackers and observe their behavior. Honeypots are used for early attack detection and collecting threat intelligence.
A honeypot looks like a legitimate system but contains no real valuable data. Any interaction with a honeypot is suspicious, making it easy to detect attackers.
Types: production honeypots (increase security of production environment) and research honeypots (study attacker behavior).