Network Security 101

Released on: March 5, 2008, 8:44 am

Press Release Author: mohan mittal

Industry: Computers

Press Release Summary: As more people are logging onto the Internet everyday,
Network Security becomes a larger issue. In the United States, identity theft and
computer fraud are among the fastest rising crimes. It is important to protect your
network and ensure the safety of all computers and users in that network. .

Press Release Body: As more people are logging onto the Internet everyday, Network
Security becomes a larger issue. In the United States, identity theft and computer
fraud are among the fastest rising crimes. It is important to protect your network
and ensure the safety of all computers and users in that network.

What is a Network?

In order to fully understand network security, one must first understand what
exactly a network is. A network is a group of computers that are connected.
Computers can be connected in a variety of ways. Some of these ways include a USB
port, phone line connection, Ethernet connection, or a wireless connection. The
Internet is basically a network of networks. An Internet Service Provider (ISP) is
also a network. When a computer connects to the internet, it joins the ISP's network
which is joined with a variety of other networks, which are joined with even more
networks, and so on. These networks all encompass the Internet. The vast amount of
computers on the Internet, and the number of ISPs and large networks makes network
security a must.

Common Network Security Breeches

Hackers often try to hack into vulnerable networks. Hackers use a variety of
different attacks to cripple a network. Whether you have a home network or a LAN, it
is important to know how hackers will attack a network.

One common way for a hacker to wreak havoc is to achieve access to things that
ordinary users shouldn't have access to. In any network, administrators have the
ability to make certain parts of the network "unauthorized access." If a hacker is
able to gain access to a protected area of the network, he or she can possibly
affect all of the computers on the network. Some hackers attempt to break into
certain networks and release viruses that affect all of the computers in the
network. Some hackers can also view information that they are not supposed to see.

Destructive Attacks

There are two major categories for destructive attacks to a network. Data Diddling
is the first attack. It usually is not immediately apparent that something is wrong
with your computer when it has been subjected to a data fiddler. Data fiddlers will
generally change numbers or files slightly, and the damage becomes apparent much
later. Once a problem is discovered, it can be very difficult to trust any of your
previous data because the culprit could have potentially fooled with many different
documents.

The second type of data destruction is outright deletion. Some hackers will simply
hack into a computer and delete essential files. This inevitably causes major
problems for any business and can even lead to a computer being deemed useless.
Hackers can rip operating systems apart and cause terrible problems to a network or
a computer.

The Importance of Network Security

Knowing how destructive hackers can be shows you the importance of Network Security.
Most networks have firewalls enabled that block hackers and viruses. Having
anti-virus software on all computers in a network is a must. In a network, all of
the computers are connected, so that if one computer gets a virus, all of the other
computers can be adversely affected by this same virus. Any network administrator
should have all of the essential files on back up disks. If a file is deleted by a
hacker, but you have it on back up, then there is no issue. When files are lost
forever, major problems ensue. Network security is an important thing for a
business, or a home. Hackers try to make people's lives difficult, but if you are
ready for them, your network will be safe.
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