Dorothy E. Denning, in her essay “Framework and Principles for Active Cyber ​​Defense,” presents a broad view of active cyber defense drawn from the concept of active air and missile defense. It offers a variety of cyber defenses, many of which are widely deployed and considered in today's environment to be threatening. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get an original essay The IT security community has a sore spot with the concept of active cyber defense. Gary McGraw, Citadel's chief technology officer, called it "irresponsible," a recipe for disaster. He added that "the last thing we need in IT security is a bunch of lunatics and lynch mobs." Although his remarks are based on the concept of active defense based on "hacking" or "attacking the attacker", if the safety of innocent people is at stake, then it should remain at a standstill. This trial raised many legal and ethical questions. The author reviewed the concepts of active and passive air and missile defense, described a framework for differentiating different types of cyber defense, and finally suggested the main legal and ethical principles for conducting active cyber defense. and passive air and missile defense was distinguished by U.S. military doctrine and defined as active air and missile defense (AMD), as cited by Dorothy E. Denning, a surface-to-air and missile defense system which uses an advanced air interceptor missile and an advanced missile defense system. high-performance radar system to detect and shoot down hostile aircraft and tactical ballistic missiles. He suggested that active and passive air defense can be applied to the cyber domain by replacing the term "air and missile" with "cyber" which can be understood as active cyber defense. . Active cyber defense is direct action taken against specific threats, while passive cyber defense includes cryptography and steganography. The active cyber defense framework has been characterized by four characteristics such as scope of effects, degree of cooperation, types of effects, and degree of automation. Dorothy also emphasized the ethical and legal principles of active cyber defense. He advised that active cyber defenses should be deployed ethically and legally. Six different principles have been suggested to promote this authority, third party immunity, proportionality of necessity, human involvement and civil liberties. Wake Forest University also shared in its research paper titled "Defense on the Move - Ant-Based Cyber ​​Defense" that conventional cyber defenses such as firewalls and intrusion detection systems have remained static, which gives attackers an opportunity to make attacks, but defense against moving targets like Ant-based cyber defense proves to be a resilient defense that eliminates the defender. It was revealed that ant-based cyber defense is not a new concept, but is being applied to cybersecurity. It is a complex system with many inputs and sources of variability. It includes sergeants, sentries and sensors which are software agents, currently implemented as a new mobile agent framework written in Python. It has also been suggested that the hierarchy of cyber defense employee agents lies between the human supervisor and the protected resource. Putting the defense in motion ABCD allows for a moving target capability, the defense.