Assessment of Cyber Attacks Influence over Internet Network

摘要

Cyber attack is an attempt to damage computer system or disturb its operation, or an attempt to manipulate the information on the Internet. Lately, cyber attacks of large scope have a negative effect on the functionality of Internet network. In 2007, a major cyber attack was launched against Estonian information systems. The internet resources of banks, various ministries, government, and other important institutions were compromised during the attack. 128 distributed denial of service (DDoS) has been found that practically damaged Estonian Internet network for some time period [1]. A similar cyber attack was detected in Georgia as well in 2008 [1]. The article discusses the main types of cyber attacks targeting Internet network. It also presents the results of the study aimed at identifying the effects of cyber attacks on the functionality of Lithuanian Internet network infrastructure. The objective of the study is to prepare model to measure the impact of a hypothetical cyber attack on the Lithuanian Internet Network infrastructure, and identify the weakness components of network.