Those people use a computer or laptop, they must know about the firewall software. This is a security based software. When a computer or a system is associated with the internet connection, then the hackers attack the system and destroy all important databases or steal the sensitive information. In this case, the firewall software plays an important role to maintain the security of a system. The firewall monitors the incoming and outgoing data transfer and controls the network traffic. If any abnormal behavior or activities can be found, then the firewall notifies the users and stops the data transmission. In this case, the firewall software asks permission for further communication. Often people misinterpret the firewall software with the antivirus software. But both software is very important to maintain the security of a device. The firewall software cannot delete any virus, but it can detect the unwanted attacks and threats. On the other hand, the antivirus of AV virus can ...