Folks not so familiar with the techie stuff may wonder what they need to install a firewall for.
So let’s talk about some basics about firewalls that make you understand what you need
a firewall for and how a firewall works.
Basics about firewalls
What is a firewall?
Simply put, a firewall is a piece of software that protects
your computer from intruders by monitoring the ingoing
and outgoing traffic from the Internet. Personal firewalls
are already pre-installed on your computer, router firewalls
are installed in a router and often used by home or small
businesses, enterprise firewalls are used in big companies,
often together with other security measures.
What do you need a firewall for?
In case you have not experienced that yet, on the Internet you’re a target for viruses,
hackers and identity thieves who search the Internet for unprotected computers to break in.
Those online criminals try to hijack random computers to use them to cover serious crimes.
So you could easily become a suspect in a crime you don’t even know it was committed.
While antivirus software keeps out viruses, worms and Trojan horses, the firewall stops
hackers and other intruders from infiltrating your computer. Together, the two protect your
computer from attacks that use a combination of malicious software and hacking techniques.
Just watch this video to learn more about cyber threats and cyber security:
As you see, safety and security online is a serious issue and therefore, please pay attention
to what you do and what you share online. Knowing the most important techie things like
the basics about firewalls will make your online journey safer and much more enjoyable.
Check out our online security resources and implement as many tips as you can in your
own online business.
How firewalls work
Basically, a firewall is a filter between your computer or network and the Internet.
A central platform lets you set, control and change protection levels, monitor the traffic
and respond to alerts. You can allow all traffic to pass through, except the one that meets
the predefined criteria, or you can deny all traffic unless it meets the predefined criteria.
That means that depending on the filtering options, you can specify what you allow to get in
or what data you allow to be sent out.
All recent versions of Windows come with a built-in firewall that protect your computer
on a basic level. However, for a better protection, you should consider to use a personal
firewall for another security layer.
Install a personal firewall
Keeping hackers and identity thieves out and protecting your data is a big challenge on
the Internet. By installing a personal firewall you can protect your computer from malware
(malicious software) and from sending out information (like personal data) online criminals
are looking for. A good reason to learn more than the basics about firewalls, wouldn’t you agree?
As always, the best solutions you’ll need to pay for.
Some more “basics about firewalls”? Check out the other definitions for “firewall”.