The internet can be a dangerous place without good online security measures in place. A firewall can help keep unauthorized traffic away and protect your network and internet-connected devices. Read on to learn more and stay safe online.
Firewalls have been used to improve safety long before the internet was even invented. However, the purpose of these firewalls was to help contain an actual fire from spreading inside a building. A digital firewall, on the other hand, monitors incoming and outgoing traffic.
Definition of a Firewall The task of a firewall is to let only safe traffic through it while blocking traffic that can pose a threat to cybersecurity. In a way, a firewall acts as a filter between a device, such as a desktop computer, and an external network, such as the internet. A firewall blocks unauthorized traffic from coming both into and out of your computer.
For example, a firewall can block a hacker from breaking into your computer. It can also prevent a virus on your device from accessing the internet. However, a firewall may also mistakenly stop safe applications from working. Although a firewall is a great addition to your arsenal of cybersecurity measures, it is not enough alone in today's online environment, full of hackers and malware.
Fortunately, most consumer devices have their own firewalls, so you do not need to buy a separate firewall for your computer. Just make sure that the firewall on your device is up and running from the device's settings. An antivirus program, on the other hand, is something everyone should install on their devices, as it is not often included by default.
What is the Difference Between a Firewall and an Antivirus? In order to stay safe online, you need more than just a firewall. The most important cybersecurity tool is an antivirus program. But how does it differ from a firewall? Although a firewall monitors and, in some cases, blocks traffic coming in and out of your device, it does not check what's in that traffic. An antivirus program, on the other hand, inspects downloaded files and visited websites to see if they pose a threat to you and your device. If an antivirus comes across something suspicious and potentially dangerous, it blocks the threat before it can cause any harm.
A common misconception is that the default firewall on your computer is enough to protect you. Although it does help, a firewall needs an antivirus program to support it. As firewalls often block traffic that can stop legitimate programs from functioning or prevent you from downloading files, many users tend to make exceptions to their firewall's rules or turn it off to avoid inconvenience.
When the firewall is turned off without an antivirus to act as a backup, you are left completely defenseless against malware and hacking. With an antivirus there to support you, you can safely turn off your firewall to download files or use programs that might be blocked by a firewall.
Do I Need a Firewall? Whether you are an individual user or a large company, a firewall adds another layer of protection on top of other security measures, such as an antivirus. Although the default programs on Windows and macOS devices offer protection against hackers and their attempts to attack you, the cybersecurity landscape is always evolving, and you need to be prepared for whatever cybercriminals come up with.
For instance, a firewall:
Monitors traffic in your network. If the firewall identifies a threat, it blocks it from reaching your device.
Blocks harmful traffic in your network. If traffic in the network is identified as harmful, the firewall can stop it before any damage gets done.
Minimizes the risk of malware infection. With a firewall, you can protect your device from being infected with malware, such as Trojans, ransomware, and spyware. However, a firewall alone is not enough, as your device may still get infected if not supplemented with an antivirus.
Improves overall security
