|
Return to our article index.
Computer
Security Measures and Vigilance
Nowadays,
countless people depend on computers for executing their
work, home assignments and for creating or storing
essential information. Hence, it is of the utmost
importance for this computer information to be carefully
stored and well maintained. Besides, it is equally
imperative for people using computers to protect them
from probable data loss, abuse and misuse. For instance,
it is vital for businesses to retain the information
they possess protected in order that hackers cannot get
to the data. In addition, home users too are required to
take proper measures to ensure that their personal
credit card numbers undoubtedly are safe when they
partake in online transactions.
Computer
security risk refers to any action that
possibly could result in loss of data, software,
information, processing incompatibilities, or lead to
damage to the computer hardware. Many of these are
intended to cause damage. A deliberate violation of
computer security is called a computer crime and
this differs a little from what is called a cyber
crime. Now a cyber crime refers to unlawful acts
committed on the Web and this is amongst the FBI’s main
concern. There are numerous different categories of
people that commit cyber crimes, and these people are
known as hackers, crackers, cyber extortionists, cyber
terrorists, script kiddies, corporate spies and
unethical employees.
The term
hacker actually was believed to be a decent term but
presently there are negative connotations attached to
it. A hacker is thought to be someone who gains
access to a computer or a computer network illegally.
Their regular line of reasoning is that they commit this
in order to detect loopholes in the network security.
The term cracker never has been linked with
something constructive and it denotes someone who
deliberately gains entry into a computer or a computer
network with criminal intentions. This person is
essentially a criminal hacker. Such persons penetrate
the computer with the sole purpose of obliterating, or
lifting data. Both hackers and crackers have highly
developed network skills.
A cyber
terrorist refers to a person who makes use of the
Web or the computer network to damage computers on
political grounds. This resembles a standard terrorist
assault since it calls for well-trained persons,
millions of dollars of investment, and several years of
planning. Next, the term cyber extortionist
refers to a person who employs emails as a destructive
weapon. Normally such persons dispatch intimidating
emails to companies declaring that they would make
public certain classified data, take advantage of
security slip-ups, or trigger an assault that would
damage the networks of companies. They will demand
substantial amounts in order not to go ahead with their
evil intentions, something akin to black mailing.
An
unethical employee refers to an employee who
unlawfully makes his way into the company’s network for
various reasons. One motive could be money to be
obtained from exchanging confidential information, or
perhaps a few employees may be harboring a grudge and
waiting to settle scores. A script kiddie refers
to a person who is similar to a cracker since his aim is
to create damage, but is not equipped with the technical
skills. Generally they are harebrained teenagers that
make use of prewritten hacking as well as cracking
programs. Then, a corporate spy is armed with
exceptionally advanced network and computer skills and
is engaged to force an entry into a particular computer
or a computer network in order to lift or erase
information and data. Devious companies employ these
kinds of persons to take part in what is commonly called
as corporate espionage. Now they resort to this so as to
have an upper hand over their rivals through unlawful
activities.
Home and
business users need to put in their best so as to defend
or protect their computers from the threat of a security
risk. The following section of this article provides you
with guidelines on how to help safeguard your computer.
Nevertheless, one must keep in mind that nothing can
ensure 100% computer protection and therefore there is a
greater emphasis on becoming proficient in this field.
When you pass on information using a network, there is a
higher security risk involved as opposed to information
sent through a business network since the administrators
generally take certain extreme steps to help defend
against security risks. But where the Internet is
concerned, there is no controlling administrator and
this considerably increases the risk.
In case you
are unsure whether your computer is open to a security
risk, then you can opt for some kind of web-based
security service. This is basically a website that runs
a safety check on your computer concerning email &
Internet flaws. Then the company will provide a few tips
on how to fix these flaws. This can be done at The
Computer Emergency Response Team Coordination Center.
The standard network assaults that place computers
in a risky position include viruses, Trojan horses,
spoofing, worms, and disclaimers regarding service
attacks.
Every
unguarded computer is exposed to threat of a computer
virus. This is a potentially destructive
computer program, which infects a computer detrimentally
and changes the manner in which the computer works
without the user’s authorization. The moment the virus
enters the computer it is possible for it to spread all
the way through, contaminating other files and probably
harming even the operating system. In fact it is quite
like the bacteria virus, which infects humans as it
enters the body through tiny openings and spreads to
other regions of the human body and creates damage. This
likeness is in fact a fine way to prime yourself for it.
Next, a computer worm refers to a program that
duplicates itself over and over again and is quite akin
to the computer virus. But the difference lies in the
fact that the virus has to fasten itself onto executable
files and turn out to be a part of the file. Now a
computer worm does no such thing but simply copies
itself and uses up plenty of bandwidth. Then the
Trojan horse, so called after the popular Greek
legend, is used to define a program, which clandestinely
conceals itself and in fact appears like a genuine
program but actually is a phony. A specific action
normally activates the Trojan horse. However unlike
worms and viruses it does not copy itself. Trojan
horses, computer viruses, and worms are all grouped as
malevolent-logic programs and these programs are
intentionally intended to damage a computer. While these
three are the common ones there are several other
variations and it is just not possible to list them.
You might
suspect a Trojan horse, virus, or worm has attacked your
computer, if any of the following occur:
Screen
shots of bizarre messages or images materialize.
You have
far less memory available than you anticipated.
Sounds or
music play at random.
Files tend
to be corrupted.
Files or
programs do not operate well.
Unidentified files or programs appear at random.
System
properties vary.
Trojan horses,
computer viruses or worms distribute their instructions
or payload in 4 familiar ways. Firstly when a person
runs a corrupted program and therefore when you download
several things, you always need to scan the files prior
to executing, more so where executable files are
concerned. Secondly is when a person operates an
infected program. Thirdly is when a person boots a
computer containing an infected drive. Hence it is vital
not to leave behind media files in the computer when you
are finished and shut down. Fourthly is when it links an
unguarded computer to the network. These days, a Trojan
horse, computer virus, or a worm commonly infects
computers when people access an infected file via an
email attachment.
Now there are
virtually countless computer malevolent logic programs
and fresh ones appear by the dozens and this is why it
is vital to be updated with the new ones, which appear
every day. Most websites monitor this. However there is
no recognized method for totally defending a computer or
a computer network against Trojan horses, computer
viruses, and worms but it is possible for people to take
various safeguards to considerably lower the likelihood
of their computer being infected by any of these
malevolent programs.
Every time you
switch on the computer, take care to see that there are
no removable media present in the drives. Now this
applies also to floppy disks, CDs, and DVDs. Once the
computer gets underway, it attempts to carry out a boot
sector on its drives. In the event that it fails, the
hard disk of the computer can be infected. In case you
need to start your computer for any specific reason, for
instance, when the hard disk does not work and you are
attempting to reformat the computer drive, ensure that
the disk positively is not infected. |