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Computer Security for Beginners
Have you ever heard of “computer security
problems?” It does sound pretty shocking, as you
would not expect computers to have any problem at
all. You are used to listen that the famous “technology
cannot possibly have any ﬂawless”.
Computer security is a very important thing you
should think before purchasing a computer, what I
mean by this is that you should be aware of all the
danger that your computer is surrounded inside that
screen, and be able to know how it aﬀects your
computer and what are the possible ways to ﬁght
The solution to your problems-
Website to download preventable
Firewall: Spyware: http://www.superantispyware.com/
• A ﬁrewall is a hardware that protects your computer’s
system from other networks, such as the Internet. What
this basically does is that it only allows all the computers
that are allowed in the network. As if people get access to • Viruses' only purpose is to contaminate your computer to
your computer they may damage your ﬁles. alter your ﬁles and the way your operating system works.
• Businesses, for example use this hardware to restrict Vir us will enter your computer without any
employees access to vulnerable data; the record of payroll authorization, in other words you may not be aware you
or their own records. Accounting the existence of Firewall have one until you see some programs don’t work fast
they address a professional company for them to protect enough.
their networks. Individuals are also aﬀected with the • is will have a negative eﬀect, as once the virus is inside
absence of ﬁrewall, as it means that anyone who is sharing your machine it will spread all over and damage your ﬁles.
their same network can easily access their personal ﬁles e following are just some of the few things your
such as pictures, documents and music. computer may experience: unusual message display on
• A way to protect your computer system is by purchasing a your screen, some ﬁles may disappear, some programs
ﬁrewall hardware. Some operating systems have a don’t work correctly and as said before your operating
personal ﬁrewall already included; Windows Vista, system can start to run slower.
however if your operating system doesn’t have one, no • Purchasing an antivirus is deﬁnitely the best solution to
problem, you can purchase one usually for less than $50, get “rid” of any virus. is softwares have been designed
or you could also buy a router which is a device with a to remove, detect and even protect your computer. A good
“built-in” ﬁrewall. example of an antivirus is “Norton” you can purchase this
is cartoon symbolizes how you should be prepared to attack and prevent
any virus in your computer.
• I’m sure that when you login to any of your email accounts, or bank accounts you are asked to write in your
password. A password will only give access to the “allowed” person, in other words just to you. In other words a
password is a combination of diﬀerent characters, including letters (upper case and lower case), numbers and
symbols . A not very good password would be your birthday date, or a combination of your last name, this is because
it is an obvious password, which means that you are making hacker’s job easier. Hackers are likely to want your
password to be able to get access to your ﬁnancial accounts and personal information and data. Imagine what would
happen if someone else had access to you bank accounts, they could easily deposit money from your account to
someone else’s account. If someone had the facility to enter your personal documents, for example family photos,
you would ﬁnd yourself in serious problems, you wouldn’t know where your pictures are going around.
• e common mistake people do is that they usually don’t change their passwords often, because it seems that you
can forget such complicated set of characters, well a solution can be, for you to keep this information in a safe place,
where you know you are the only authorized person to access. Also most of the time you are asked to come up with a
password, you can associate it a secrete question and answer, which might give you a clue to what the actual
password is. Another solution is to have diﬀerent passwords for diﬀerent websites.
• Anyways, what is spyware? is is a software which was designed to
gain access to a computer, with a purpose to contaminate it as a virus
• Spyware may result as an eﬀect of annoyance as this is software
makes the computer slow down. And getting rid of the spyware is a
very diﬃcult process. A very common “symptom” spyware has is that
it causes pop ups, which can lead to the user to have a virus in their
computer and reducing your network connection. You are also risking
all your personal ﬁles, as this softwares track you and anyone who is
able to gain access they may steal any important
A print preview of what a website looks like before entering your user • A solution might be that anyone who is experiencing spyware they
name and password. may install an anti spyware software such as Super Anti Spyware or
simply disconnect your network connection. Also companies, which
Biometrics: are likely to be aﬀected can introduce a policy stating that all the data
that was gathered stay anonymous. at way no one has any access to
any personal information.
• Biometrics are technological methods used to recognize
humans, in other words to give them access to certain softwares
or machines. Diﬀerent types include; face recognition
(measuring distance between your eyes, size of nose), body
shape, ﬁnger prints, gait (the way you walk), DNA and even the
way you type.
• e most likely eﬀect that you can go through when using
biometrics is that the machine can either give you false positive
(which is when the biometric give access to someone who
shouldn’t get access, which can be dangerous for yourself, as you
may have conﬁdential information which cannot be revealed). It
can also give you false negative (which is when it doesn’t give
access to the someone who should get access, this becomes
annoying as maybe you need to urgently get in to your ﬁles and
it doesn’t gives you the authorization.
• ese are the few solutions for biometrics is to make sure that
you buy a good machine, in order to get the least number of
false positives. Another reliable solution is to address reliability;
meaning to have a multi- layer security, for example you could
have biometrics and passwords.
Ana Danielle Quan
Most biometrics require your print ﬁnger, once again it depends on the owner.