Types of Unauthorized Access to Wireless Networks

The unauthorized access to the wireless signals is really common. The various types of unauthorized access are malicious association, accidental association, ad hoc networks, and nontraditional networks, man in the middle attack, identity theft and denial of service. When a user turn on its PC, and he or she receives unauthorized signals from a neighboring building. User might not even signals are emerging and make use of it are have a clue from where they are emerging and make use of it , then we can call it accidental association. When a person uses crackers to access the password of the wireless network it is termed as malicious network. When the wireless technology has no centre device to act for it encryption settings are hard to mange therefore security cannot be achieved. Bluetooth devices and PDAs are nontraditional form of networks; they can be easily hacked by using cracker technology.

Disadvantages of wireless networks

The development in the communication systems and the networking has given rise to the wireless networks. The ease and flexibility of wireless communication has enabled us to use personal assistance devices to be used anywhere. This has enabled the mankind to excel in every field of the life, but at the same time it has many threats as well.
Security threats to Wireless Networks

Besides all the comforts of the life wireless networks poses serious security threats. The main reason is the signals are spread in the air and it is convenient for the hackers to catch wireless signals. Wireless networks require very tight security so that the unauthorized users cannot exploit the information. As more and users are making use of the wireless technologies, the risk of data being lost is increasing. The current wireless encryption protocols are difficult to handle .moreover the common users are not aware of the ways of addressing wireless security matters. One must build strong security protocols in order to secure the wireless signals like WPA and WPA2. Moreover wireless intrusion prevention system is another better way to build strong security system.

Wireless Routers - Some Disadvantages

Wireless routers allow flexibility and freedom for many internet users. With Wi-Fi, a person can sit at a coffee shop and start surfing the web as if they were connected to a phone jack or cable at home. Even today, some towns are going completely wireless so that anyone within the vicinity can access the net for free.
But with all the advantages that wireless routers provide there are things we should be mindful of when we decide to plug in the router. Wireless routers are not necessarily without their flaws. Here are few things to keep in mind.
If a person were to connect directly to the internet with a cable and compare that with the same connection, but with a wireless router, there would be a noticeable difference. The wireless connection will be slightly slower than the direct connection. The reason is simple; a Wi-Fi transmits through the air and there's some degradation with this medium. It's like comparing television reception between cable and antennas. Cable is obviously faster.
Possibly a huge concern with wireless routers and Wi-Fi is the encryption protocols. In some public Wi-Fi places (such as a local café), the transmission is encryption free. This means that all of your private data stored in your laptop or PDA will be exposed to anyone in the same vicinity. It's possible that an unscrupulous person could obtain passwords and important personal information.
An older protocol for wireless routers is the Wired Equivalent Privacy (WEP). Although it does have a level of encryption, the encryption can be easily compromised. The problem has caused a number of wireless router owners to upgrade to WPA and WPA2 encryption protocols.
With the increasing Wi-Fi hotspots in the neighborhood, Wi-Fi pollution is becoming more apparent. Sometimes stores or organizations will broadcast over the same channel, causing interference and lack of access points. Cities are just noticing this problem as more users are jumping into the wireless realm.
Other devices and equipment can also contribute to the pollution. Studies have shown that Bluetooth devices, cordless phones and microwave ovens all contribute to interference of public wireless transmissions. This is a known problem in high-density areas such as cities with many access points.
Wireless routers do not have a limitless range. As such, the broadcasting radius could be limited to just a 150 to 300 ft. If you want to improve the range, you'd have to purchase Wi-Fi antennas.
The wireless Wi-Fi realm is different to other mediums such as Bluetooth. The power consumption is much greater for devices using Wi-Fi through a wireless router or access point. People who use PDAs or laptops will burn through battery power.
Another problem is that for countries all over the world, you'll find differing spectrum assignments. The lack of consistency has caused problems for internet users traveling from country to country. In some instances, governments may prohibit use of certain channels or require special authorization.
There are many disadvantages of wireless routers and Wi-Fi, but the disadvantages should not necessarily stop a person to use the service. Consider the pros and cons of the wireless realm first before jumping into the World Wide Web.

Disadvantages of Wireless Internet

With wireless Internet service, there’s the problem of someone, within the wireless traffic, hacking into your connection. So, you need to be sure to use wireless security to ensure all your private information is safe from those unauthorized viewers. There are many firewalls out there that work well for this purpose or you can look into using a network system to set up password protected connections.
Verizon wireless and Sprint wireless are two popular wireless companies in business today. Verizon wireless offer several different types of wireless devices that are commonly used by consumers. Cell phones and wireless broadband Internet are the most popular services they offer. They also offer PDAs and wireless PC cards.
Wireless technology comes in various other forms as well. You can find wireless speakers for your stereo system, wireless headphones, wireless receivers and transmitters and even microphones. You can find wireless computer mice, keyboards, satellite TV, cordless telephones and even garage door openers. The future will probably bring us a world full of wireless technology. Hard wired devices will end up being more of a thing of the past, once wireless technology grows.

disadvantage

One of the disadvantages of wireless technology is that it can be operated only for a limited period of time. There is the possibility that interference of other radio equipments may affect the system though this may vary from model to model. Once you get really into microphones, you may consider looking for cheap vintage microphones for sale. You can use them, or add them to your collection, and hey, the look really cool. The neat thing is that they are available on the internet for really cheap prices.
• Lower speed compared to wired network.
• Less secure because hacker's laptop can act as Access Point. If we connected to their laptop, they'll read all our information (username, password).
• More complex to configure than wired network.
• Affected by surrounding. example: walls (blocking), microwave oven (interference), far distance (attenuation)

Advantages of wireless technology in other application

Security systems
Wireless technology may supplement or replace hard wired implementations in security systems for homes or office buildings. This will help human in case to prevent theft. With this wireless also, consumer can reduce the amount of wire that use. This indirectly will make the environment become more smart and simple. Supplier also easy to install this system unit without making major wiring.
Television remote control
Modern televisions use wireless (generally infrared) remote control units. Now radio waves are also used. This helps us especially to change one channel to another just from far.
Global Positioning System (GPS):
allows drivers of cars and trucks, captains of boats and ships, and pilots of aircraft to ascertain their location anywhere on earth
The following list summarizes the main benefits of using wireless technologies:
1 Completes the access technology portfolio: customers commonly use more than one access technology to service various parts of their network and during the migration phase of their networks, when upgrading occurs on a scheduled basis. Wireless enables a fully comprehensive access technology portfolio to work with existing dial, cable, and DSL technologies.
2 Goes where cable and fiber cannot: the inherent nature of wireless is that it doesn't require wires or lines to accommodate the data/voice/video pipeline. As such, the system will carry information across geographical areas that are prohibitive in terms of distance, cost, access, or time. It also sidesteps the numerous issues of ILEC colocation.
3 Involves reduced time to revenue: companies can generate revenue in less time through the deployment of wireless solutions than with comparable access technologies because a wireless system can be assembled and brought online in as little as two to three hours.
4 Provides broadband access extension: wireless commonly both competes with and complements existing broadband access. Wireless technologies play a key role in extending the reach of cable, fiber, and DSL markets, and it does so quickly and reliably. It also commonly provides a competitive alternative to broadband wireline or provides access in geographies that don't qualify for loop access.


Range from peer-to-peer networks suitable for a small number of users to large infrastructure networks that enable roaming over a broad area.

advantage of wireless technologyge on wifi(internet), bluetooth, mobile phone

Advantages of wireless technology in internet or WiFi:-
Wireless internet or Wi Fi is one of the latest developments in providing people with Internet access whenever they need it even while traveling. This is a convenient way to stay connected with family members or business clients anytime of the day.
Wireless internet or Wi Fi is one of the latest developments in providing people with Internet access whenever they need it even while traveling. This is a convenient way to stay connected with family members or business clients anytime of the day.

With the fast evolution and advancement of the Internet, millions of people all over the world make use of the Internet in their daily life.
The internet offers a lot of useful information such as weather forecast, entertainment, research, music, news, online shopping, and many more.
The Web also provides a more convenient way for people to communicate with others even in far away countries.

Businesses are also dependent on the Internet in dealing with their clients whether local or abroad. They too are kept posted with the trends as well as stock updates though the Net. They also use corporate e mails in nearly all of their correspondence. Customer services and technical support of many companies also rely on the power of internet. Indeed, the Internet had become a necessity for ordinary people as well as business people.


Because of enormous growth of dependency on the Internet, people want to have internet connection even when on the go. This is now possible through the development of wireless Internet. Wireless Internet is popularly known as Wi Fi, which is the trade name of this kind of wireless technology. A wireless Internet access is commonly called as hot spot in which a LAN or local area network transmits radio waves as opposed to a wired network.



Some of the internet wireless instrument


Internet connection is broadcast with the use of a central hub connected to a computer system that functions as the server. The server broadcasts the signal to clients which have Wi Fi capable devices such as desktop computers, PDAs, laptops, mobile phones, game consoles, and many more electronic gadgets. The wireless internet covers diverse IEEE 802.11 advanced technologies such as 802.11n, 802.11b, 802.11g, and 802.11a.

A home network can be set with wireless Internet, as well. This is done through the utilization of a router which performs as an access point. The router broadcasts Internet connectivity to Wi Fi enabled devices within its area of reach. With this set of connections, anyone from the family can make use of their laptops or desktops and can gain access to the Internet.

What’s more, wireless Internet through home network can also be accessed by neighbors without your knowledge. To resolve this issue, a password security can be configured so that only authorized devices can have access to the network. With the growing risk of security issues, the security protocols for Wi Fi log on have been made available with the employment of Wi Fi Protected Access (WPA) and the Wi Fi Protected Access 2 (WPA2).

Wireless internet through its public hot spot is being offered for free to its customers by many business establishments. These establishments include internet cafes, food chains, coffee shops, hotels, and restaurants. Some airports also provide the same service for travelers’ convenience. These features are becoming very prevalent in many places and countries. There are also a number of cities which provide wireless Internet access to their residences and visitors. Since the hot spot can cover only a certain area, you have to be within the range of the hub in order to log on to the Web.

Significantly, a wireless Internet is of great advantage compared to wired network. Wired network usually consumes a lot of time in order to set up in a building or house. It also entails more expenses as it requires a lot of UTP cables to be wired for each of a client’s computers. In some instances, there is a need to route wires through thick wall or ceilings. Wireless LANs can be deployed easily and is less expensive. More clients can be added to the network without the necessity for extra materials.

Since 2008, many of the latest laptops and gadgets come with a built in wireless network device. There are also a lot of gadgets which can be applied for computers or laptops that do not have any wireless network device. Some of these devices are the USB Wi Fi adapters, PCI wireless adapters, PCMCIA Wi Fi cards and other similar devices. There are also wireless repeaters used to extend the range of signal of any existing wireless network. This device is ideal for locations having many physical barriers like thick walls and in cases where there is a need to share the Internet in two separate buildings.

Advantages of wireless technology in Bluetooth wireless USB adapter :-
Bluetooth is a wireless technology, using a small microchip, a portable device and a mobile. Your mobile and the device get interconnected by Bluetooth as soon as they come within the specific range.

The technology thus gives you short range connectivity using 2.4 GHZ radio waves, without the use of wires and different size of cables. But what you need is the Bluetooth USB adapter and the chip. This chip function just likes the cable wires but they use radio waves to connect and transmit the information.

Bluetooth USB is a small hardware device. Bluetooth adapters and the dongles are the small devices almost the size of your small finger and they can be attached to the USB port in your personal computers. As you attach the dongle the computer automatically gets connected to the nearby mobile by Bluetooth. You can then use these settings to download the ring tones or wallpapers to your mobile.

How is it advantageous?
The first benefit is that you don't have to tangle yourself in those noodle strip wires and cables. You just insert the US dongle in the USB port and download the wallpapers or ring tones or the games to your mobile.

It is simple to use. You just need to be in the range of 10-15 meter distance, so that your devices get connected by Bluetooth.

It is safe to use. The devices with Bluetooth exchange the authentication details and get connected automatically.

The technology also supports the VOIP technology hence you can talk to your friends also.
When you are using the USB adapter on your personal computer, then you are in a way using the computer and the mobile technologies together.

Around 8 devices can connect within the piconet or Personal Area Network formed by the Bluetooth.

You can transfer the games, ring tones, songs, text messages, and files among the connected devices in the piconet at the speed of 1-2Mbps.

When you connect the Bluetooth USB adapter to your computer you make your computer Bluetooth enable. That means your computer can now exchange the authentication code with other Bluetooth enabled devices in the short range of the piconet and get connected wirelessly. Now you can coordinate the contacts on your desktop or print the sheets or transfer files.

Although the connectivity is affected if there are more devices within the piconet or there are any changes in the environment, but the advantages out power the demerits.

Some of the Bluetooth USB that use wireless technology


Advantages of wireless technology in mobile phone :-


A mobile phone or mobile also called cell phone and hand phone is an electronic device used for mobile telecommunications (mobile telephone, text messaging or data transmission) over a cellular network of specialized base stations known as cell sites. Mobile phones differ from cordless telephones, which only offer telephone service within limited range, e.g. within a home or an office, through a fixed line and a base station owned by the subscriber and also from satellite phones and radio telephones.
This is one of the modern instruments that use wireless technology. One of the advantages using this wireless technology in mobile phone is it:-

• Portable were we can carry it everywhere we want
• Allow us to use all available service in that have such as sending message,MMS and make video call with clear visual without distribution
This is because Wireless telephone that permits telecommunication within a defined area that may include hundreds of square miles, using radio waves in the 800 – 900 megahertz (MHz) band. To implement a cell-phone system, a geographic area is broken into smaller areas or cells, usually mapped as uniform hexagrams but in fact overlapping and irregularly shaped. Each cell is equipped with a low-powered radio transmitter and receiver that permit propagation of signals among cell-phone users.


Several examples of non-flip mobile phones, from the early 2000s.

advantage of wireless technology

Wireless networking is used to meet many needs. Perhaps the most common use is to connect laptop users who travel from location to location. Another common use is for mobile networks that connect via satellite. A wireless transmission method is a logical choice to network a LAN segment that must frequently change locations. The following situations justify the use of wireless technology:
• Can span a distance beyond the capabilities of typical cabling,
• Can provide a backup communications link in case of normal network failure,
• Can link portable or temporary workstations,
• Can overcome situations where normal cabling is difficult or financially impractical, or
• Can remotely connect mobile users or networks.

Wireless networks offer the following productivity, convenience, and cost advantages over traditional wired networks:
• Mobility: provide mobile users with access to real-time information so that they can roam around in the network without getting disconnected from the network. This mobility supports productivity and service opportunities not possible with wired networks.
• Installation speed and simplicity: installing a wireless system can be fast and easy and can eliminate the need to pull cable through walls and ceilings.
• Reach of the network: the network can be extended to places which can not be wired
• More Flexibility: wireless networks offer more flexibility and adapt easily to changes in the configuration of the network.
• Reduced cost of ownership: while the initial investment required for wireless network hardware can be higher than the cost of wired network hardware, overall installation expenses and life-cycle costs can be significantly lower in dynamic environments.
• Scalability: wireless systems can be configured in a variety of topologies to meet the needs of specific applications and installations. Configurations can be easily changed and range from peer-to-peer networks suitable for a small number of users to large infrastructure networks that enable roaming over a broad area.


Handheld wireless radios such as this Maritime VHF radio transceiver use electromagnetic waves to implement a form of wireless communications technology.