describe the typical intruder behaviors that involve a complete attack

Intrusion is an attack carried out by hacker or intruder. intruder is a person who penetrates the system without permission of user and access data, programs, other credential information such as login details, Passwords etc. Which loss the security and privacy of user. There are mainly three classes of intruder they are:

Masquerador: An unauthorized person who penetrate system and access contol

Misfeasor: A misfeasor is a legitimate user who misuse his privileges by accessing data, programs and other resources of the system.

Clandestine user: An individual who evade the access control of the system by misusing his supervisory control.

Major Intrusion attacks

• Crack passwords using guessing or by using software.
• copying users credential information such as account details.
• Accessing sensitive data without permission of user.
• Performing a remote root compromise of an e-mail server
• logged in to computer without permission