We all heard about firewall at some point of time, what are they used for?Do they stop Viruses?
Well actually, there is a great chance that you are now using a
firewall, if your are running a modern OS on your computer, there
is be one built in, or else your security suite will have a firewall.
But what is this firewall for? Keep reading for reasons why you do, need it.
What Is a Firewall?
Lets start it with what a firewall actually is. You should understand
that there are no sparks, no flames, no fuel of any kind of that stuff
involved,
A firewall is a shield or barrier which is intended to protect
your PC, phone or tablet from data-based malware dangers that exist
everywhere on the Internet.
Data is usually exchanged between your computer and servers and routers
in cyberspace while you are using internet, and the purpose of firewalls
is to monitor this data (sent in packets) and check if they are safe or
not.
Firewalls do this by establishing whether the packets meet the rules
that have been set up. Depending on on these rules, packets of data are
rejected or accepted.
Most operating systems (both desktop and mobile) will have a basic
built-in firewall, but the best results can be seen by using a dedicated
firewall application. Here are 5 reasons why you should use a
Firewall.
1. A Firewall Can Protect Your Computer From Unauthorized Remote Access
The worst thing that can happen to a computer user is someone attempting
to take control of it remotely. Seeing mouse of your PC move around
your monitor as a remote intruder usurps your digital world, assuming
control of your personal data, is petrifying.
With a well configured firewall (and a modern OS) you will have
remote desktop access disabled, and thus preventing hackers from taking
charge of your computer.
2. Firewalls Make Online Gaming Safer
In the history of video games, online gaming is one of the most
significant development and it it also a potential security risk. Many
kinds of malware has been developed which targets online gamers, who use
an unsecured or compromised game servers.
3. Firewalls Can Block Messages Linking to Unwanted Content
There are still people out there running older versions of Windows(i
mean very old like Windows XP). Worse part is that they are using XP
without any firewall, and the built-in firewall is not enabled by
default.
You read that right. The Internet has a lot of malware traversing the
cyberspace, waiting to pounce on the unprotected PCs. Even though your
ISP can help prevent this, it is unlikely that they will be able to in a
long run.
4. You Can Block Unsuitable Content With a Firewall
So far, we have been talking mainly about blocking hackers and other
types of remote access threats like malware, but firewalls are capable
of more than just that. Apart from protecting you from
ransomware directories, firewall applications also have an option to
block particular online locations.
5. Firewalls Can Be Hardware or Software
As we said above, firewalls don not necessarily have to be just
software. Hardware firewalls are also found in most homes, built into
your router. You can access these firewalls by using the administrative
credentials for the router, and once you’ve signed in you should be able
to review the options and change them if necessary.
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