A honeypot is a cybersecurity technique used to detect and analyze security threats by creating a decoy system. Honeypots are designed to look and behave like legitimate systems or applications, but are actually designed to lure attackers into revealing their tactics and techniques.
Typically, a honeypot will be a standalone system or network segment that is isolated from the rest of the IT infrastructure. It is intentionally designed to be vulnerable and easy to compromise. Once an attacker gains access to the honeypot, they will be monitored to see what types of attacks they use, what tools and techniques they employ, and what their ultimate objectives are. In many cases, honeypots will have fake data or systems that seem valuable to the attacker, but do not actually have any business value - this is intended to give the attacker a sense of accomplishment.
Honeypots are used primarily for two reasons: research and protection. From a research perspective, honeypots can be used to gather information about new and emerging threats, as well as to study the tactics and techniques of hackers. This information helps cybersecurity teams to stay ahead of the curve and develop new defenses against advanced persistent threats.
From a protection perspective, honeypots can be used to divert attackers away from critical systems and applications. By creating (fake) systems or applications that seem valuable to attackers, cyber security professionals can keep the attackers occupied and away from the real systems in the IT infrastructure.
One real-world example of honeypot usage occurred in 2010, when Google announced it had been targeted in a series of sophisticated cyber attacks dubbed "Operation Aurora." Google set up a honeypot to draw in the attackers, and was able to identify the specific IP addresses used in the attacks. This information was used to blacklist these addresses and prevent further attacks.
In summary, honeypots are a valuable tool in the cybersecurity arsenal. They provide a means for security professionals to gather intelligence on potential threats, and can be used to protect critical systems by diverting attackers away from them.