In this article we will discuss Types of Threats – Network Attacks, will make brief discussion on Types of Threats – Network Attacks, In last article we discuss about Protocol Analysis.
Whether wired or wireless, computer networks are essential to everyday activities. Individuals and organizations alike depend on their computers and networks. Intrusion by an unauthorized person can result in costly network outages and loss of work. Attacks on a network can be devastating and can result in a loss of time and money due to damage or theft of important information or assets.
This is breaking into a computer to obtain confidential information. Information can be used or sold for various purposes. Example: stealing an organization’s proprietary information, such as research and development information.
Data loss and Manipulation
This is breaking into a computer to destroy or alter data records. Examples of data loss: sending a virus that reformats a computer’s hard drive. Examples of data manipulation: breaking into a records system to change information, such as the price of an item.
This is a form of information theft where personal information is stolen for the purpose of taking over someone’s identity. Using this information, an individual can obtain legal documents, apply for credit, and make unauthorized online purchases. Identity theft is a growing problem costing billions of dollars per year.
Denial of Services
This is preventing legitimate users from accessing services to which they should be entitled.
Intruders can gain access to a network through software vulnerabilities, hardware attacks or through guessing someone’s username and password. Intruders who gain access by modifying software or exploiting software vulnerabilities are often called hackers.
After the hacker gains access to the network, four types of threats may arise, as shown in the figure. Click each image for more information.