Security is everyone’s number one priority either you use your computer for just personal use or to take care of your multi-billion e-commerce website or any online business. No one likes to leave the gates of his home open when he was away. Just like that, no one prefers to leave his PC unprotected. Firewalls are just like a padlock to your computer equipped with many security systems. In this article, we will discuss the importance of using a firewall.
What is a firewall?
A firewall is a wall or shield that blocks unapproved access to and from a private network, improving the security of devices connected to a network like the Internet or a LAN (Local Area Network).
Firewalls control network traffic while identifying and blocking undesired traffic. When data is transferred between your device and servers in cyberspace, firewalls monitor these packets of data and decide whether it’s safe according to rules that have been set.
From personal computers to big enterprises, firewalls are an essential component of defending devices against threats and hacking.
Types of firewalls
There are many types of firewalls but here are the three basic types of firewalls and how they work:
- Packet Filtering: A small amount of data is examined and distributed based on the filter’s standards.
- Proxy Server: Online Information is saved by the firewall and then transferred to the requesting system.
- Stateful Inspection: Matches particular aspects of a data packet to a database of authentic information.
Importance of using a firewall
Most of the computers we buy from a market come with a somewhat basic built-in firewall, but it isn’t always the most suitable for security. As hackers and cybercrime mafia usually look for unprotected devices connected to the Internet. After easily getting the control of your device, a hacker is possibly capable to steal your personal information and do harm to your business.
Here are some of the important reasons why do you need a firewall:
- Protects your computer from unauthorized access
- Blocks undesired content
- Stops ransomware from gaining traction, viruses, and malware
- Creates a secure network for multi-person interaction, such as online video games
- Supports save your private information such as online banking credentials safe