Wireless network security threats pdf

Security is an essential service for wired and wireless network communications. As a network administrator, you need to balance the need of legitimate users to access network resources against the risk of illegitimate users breaking into your network. Hackers will target wellknown brands, looking for notoriety as well as money. However, none of the above researchers has elaborately presented wlan security vulnerabilities, threats and general guidelinesrecommendations for securing them. Network security technical report cse101507 2 12 security focuses on a variety of threats and hinders them from penetrating or spreading into the network. Effective network security defeats a variety of threats from entering or spreading on a network. Wireless threats come in all shapes and sizes, from someone attaching to your wap wireless access point without authorization, to grabbing packets out of the air and decoding them via a packet sniffer. While previous generations of wireless services were focused on a single type of network i. Ad hoc network have dynamically changing topology and also there is no centralized monitoring and management. As a result, the security response of the business community must rise to the occasion.

As show in figure 81, there are several forms of security threats to wireless networks. Both security and wireless communication will remain an interesting subject for years to come. These threats are compounded by your inability to control the security setup of the wireless network. Whats more, youre often in range of numerous wireless enabled. Typically, wireless network security is delivered through wireless devices usually a wireless routerswitch that encrypts and secures all wireless communication by default. Accessing the internet via a public wireless access point involves serious security threats you should guard against.

The security threats are increasing day by day and making high speed wired wireless network and internet services, insecure and unreliable. While some of them use wires and others use proprietary communications methods albeit wireless, we are going to focus on wifi and wifi security issues. Trojan horses and spyware spy programs dos denial of service attacks. Five steps to securing your wireless lan and preventing. It encourages companies to carry out security risk assessment so as to know the threats. This is because of the recognition that a single technology e. Therefore, it is crucial to highlight the security challenges that are threatening not only due to the wireless nature of mobile networks, but exist in the potential technologies that are highly important. Security for wireless networks white paper 4 there are a number of techniques used to combat these threats. Adhoc networks are defined as peer to peer networks between wireless computers that do not have an access point in between them. Although implementation of technological solutions is the usual respond to wireless security threats and vulnerabilities, wireless security is primarily a management issue. Monitor transaction logs of automation services, scanning for unusual behaviors countermeasures.

We use cellular phones, tablets, laptops, gaming systems, and cars to do so. Network based attacks lecture 2 george bergsanjay goel university at albany. In the present scenario, 3g and 4g networks have separate security layers but still there is a possibility of certain prominent types of attacks. Authentication helps provide reasonable assurance that the user and device attempting to connect are, in fact, who they claim to be. A wirelessenabled laptop can make you more productive outside your office or home, but it can also expose you to a number of security threats. Manet mobile adhoc network is a network model which is infrastructureless. Sanjay goel, school of business, university at albany 2 administrivia. Wireless networks have the same basic security considerations as wired networks. Network security vulnerability and attacks on wireless. Security will play an important role in wireless networks. Wireless networks are vulnerable because of they are of open medium nature. Contact the wireless network professional breaking this protocol over a short period. For everyday internet users, computer viruses are one of the most common threats to cybersecurity. Weve all heard about them, and we all have our fears.

Network security entails protecting the usability, reliability, integrity, and safety of network and data. Due to lack of any centralized infrastructure and access to trusted authorities, the security in manet poses a huge threat. This paper illustrates the key concepts of security, wireless networks, and security over wireless networks. Us global journal of computer science and technology volume xvi issue ii version i 2 year 201 e fig. Threats to wireless network security include passive monitoring, unauthorized access, and denial of service dos.

Whether the network uses cables, wireless devices, kite strings and tin cans, or smoke signals, the basic issues are the same. We also propose some countermeasures against these threats in wireless sensor network. Further, security being vital to the acceptance and use of sensor networks for many applications. There is a mindset prevailing that wireless networks are inherently insecure. Unlike a wired network which requires physical access to a device, a wireless network can be targeted and exploited from a distance. Wireless networking provides many advantages, but it also coupled with new security threats and alters the organizations overall information security risk profile. Wireless network security threats, vulnerabilities and. Disconnect automation services until patched monitor automation access points, such as network sockets, scanning for next spoof, in attempt to track perpetrator. Common wireless network security threats pluralsight. Secure network has now become a need of any organization. Security threats to wireless networks and modern methods of information security 2016 global journals inc. Wireless network security primarily protects a wireless network from unauthorized and malicious access attempts. Cse497b introduction to computer and network security spring 2007 professor jaeger page security mechanisms note. Whether the network uses cables, wireless devices, kite strings and.

Network security is an essential part of the network, preventing the many threats from damaging your network and business. Wireless security threats, vulnerabilities and thei r. They represented an isp, healthcare faci lity, an academic institution and a telecommuter. Kihun kim, younghyun kim, sangheon pack and nakjung choi 2011, an snrbased admission control scheme in wifi based vehicular networks, eurasip journal on wireless communications and networking. More of these network security threats and attacks will be high profile and reinforce the importance of cybersecurity plan. Many wireless users have no idea what kinds of danger they face merely by attaching a wap to their wired network. To gain responses to these queries, two security experts, one network administrator and one wireless network. Unauthorized association an aptoap association that can violate the security perimeter of the network. Security threats to wireless networks and modern methods. Wireless security tutorial pdf version quick guide resources job search discussion wireless security is nothing but protecting computers, smartphones, tablets, laptops and other portable devices along with the networks they are connected to, from threats and vulnerabilities associated with wireless computing. Figure 1 shows some of the typical cyber attack models. Specific threats and vulnerabilities to wireless networks and handheld devices include the following all the vulnerabilities that exist in a conventional wired network apply to wireless technologies malicious entities may gain unauthorized access to an agencys computer network through wireless. The success of mobile ad hoc network manet will depend on people s confidence in its security. Following are the types of security threats that wireless networks are most likely to encounter.

For example, hackers can steal information from a company, obtain unauthorized access to applications, and even disrupt operation of the network. This study is important because it tries to access wireless security issues that limit enterprise deployment of wireless network. The following sections describe some of the security threats you face when using a public access point. It consists of mobile networks which are free to move and the communication between them are wireless. Threats and vulnerabilities in wireless networks wireless networks are exposed to various threats and vulnerabilities. Wireless network security threats and mitigationa survey. Upgrade via security patches as they become available detection. As part of this strategy, the cisco unified wireless network provides a comprehensive solution for protecting the wired network from wireless threats and ensuring secure, private communications over an authorized wlan.