Posts Tagged ‘Hackers’

Protecting Wireless Network From Hackers and Neighbors

November 28th, 2009



Local wireless networks, which provide information to receive and send to the Internet, have become part of the houses and offices. Where as it is less expensive than wired networks and allows for roaming between the two offices to remain in contact with the electronic devices. But experts warn of the penetration it by the strangers or intruders in order to sabotage it.

According to views of the U.S. experts, unsecured homes networks can also be used by the neighbors in order to spam bots download unauthorized material on the rights of the songs and music, and even pornographic material without knowing the owner, which had led to legal proceedings. In particular, it is difficult to identify the person or organization that used the network. One person was detained when he stopped his car in front of a U.S. charitable organization and used its network to communicate with the Internet.

The offices of small businesses were opened that do not have secured internal networks to penetrate the large companies that make business with them; this also is applied to the home network. To overcome the problems the experts proposed to change the passwords on wireless networks from time to time and installation of cryptographic keys to the codes can be changed according to a regular basis. The radio signals can be adjusted so as not to fall outside the walls of the office.

Finally, the use of advanced software to scan wireless networks secures the development of local home and office computers “in the case of the shadows!”

By: Shrif S Kassem

Computer Hardware Network Security

November 27th, 2009



The term global village has become more realistic than fictional after the widespread use of the internet in all countries in the world. What the internet does is effectively computerizing the globe. Like many other things, the internet provides good and bad things. The consensus is that the good things far outnumber the bad things. But the questions posed regarding data security are serious ones. Since more and more institutions such as military, diplomatic, and financial institutions are relying on the internet or some other kinds of network for transferring data and streamlining the process, the number of people who try to misuse such data is also on the rise. To prevent this various kinds of data security measures are adopted by network administers. A majority of the data security measures are related to software applications. Computer hardware network security options are also used.

To understand the importance of data security, consider the case of a bank that has branches all over a country. For streamlining the operation, most of the banks set up a private network or a network connected with the internet to transfer financial data. A person with sufficient software and hardware knowledge can sneak into this network without permission and change the data according to his or her will. Such people are nicknamed hackers. In the case of a bank, since change of data means change or loss of money, implementation of state of the art security measures for protecting the data is absolutely essential.

The hardware components needed for a network are computers with network cards and nods for connecting these computers with each other through physical connection such as cable or through electronic signals via satellite. One will also need network and database management software for the effective functioning of the network. In most of the networking arrangements, one computer, known as the server, acts as a source and other computers act as nods of that central computer.

Normally, there are elaborate security arrangements for preventing unauthorized persons from logging in to a network. Software precautions like firewall, anti-virus and anti-hacking software packages, and encryption technologies have been widely used. Such systems are absolutely necessary to prevent data theft and other malicious intentions. The problem with software packages for network security is that such packages will be outdated after a particular period. Hackers usually understand how to get around the software packages after a certain period.

So, a computer hardware network security device is a better choice. Top network router manufacturing companies provide hardware firewall arrangement for both kinds of network systems: Ethernet and wireless. The firewall settings can be easily adjusted. Several companies also offer virtual private network devices for network security. But the important thing for providing watertight security for your network is that you need to constantly update the hardware and software requirements.

By: Candis Reade

Online and Computer Security Advice – Protecting Your Home Wireless Network

October 16th, 2009



One issue you have to address if you choose to install a wireless system in your home is that of security. You want to make at least some effort to make it harder for others to access your computer network, especially those who may want to attack your computer or steal your personal information. You can reduce these risks if you use the available security features that are built into a typical wireless system.

Performing any of the following steps will help you maintain your privacy when using a wireless network, and performing all of the steps will help even more.

* Change the router’s user name and password: Use something other than the default user name and password in order to make it harder for a hacker to access your system.

* Control access with a user name and password: Most wireless routers have a mechanism called identifier broadcasting. It sends out a service set identifier (SSID) signal or an extended service set identifier (ESSID) signal to any device in the vicinity announcing its presence. Change the default user name to a unique user name. For added protection, set it up to require a password for access.

* Turn off identifier broadcasting: Hackers near your home can use identifier broadcasting to locate unprotected wireless networks. Disable this mechanism if your wireless router allows it.

* Turn off wireless network when not in use: If you will not be using your wireless network for an extended period of time, turn it off or disconnect it. Hackers are unable to gain unauthorized wireless access to your computers if the wireless network is not operating.

* Use encryption: The most effective way to secure your wireless network from intruders is to encrypt, or scramble, communications over the network. Typically, the default setting is to have this system turned off. Follow the directions included with your wireless router, or the product support information on the manufacturer’s web site, to turn on encryption. Turning on encryption will allow access only to users with the proper user names and passwords. If your wireless router doesn’t have an encryption feature, consider getting one that does. Two main types of encryption are available: Wired Equivalent Privacy (WEP) and the more secure Wi-Fi Protected Access (WPA). Your computer, router, and other equipment must use the same encryption.

* Be careful away from home: If you are accessing the Internet through a public hot spot, do not use this connection for anything involving sensitive private information.

Depending on your system, you may not be able to adjust all of your router’s settings. You may want to review your router’s documentation or your ISP for additional information on securing your wireless system.

By: Todd Curtis, PhD