What is a firewall and how does it work with antivirus software?
Summary: what is a firewall?
A firewall is a digital filter that monitors network traffic and blocks suspicious connections. Together with antivirus software, which detects and removes malicious programs, it provides comprehensive protection against cyber threats. This combination prevents viruses from entering and limits damage if something does get through. Examples of antivirus packages with built-in firewalls include Norton 360 Deluxe, McAfee Total Protection and Bitdefender Total Security.
Cybercriminals are getting smarter. That’s why it’s important to protect your devices not just with antivirus software, but also with a firewall. These two work together like a digital security gate: one stops viruses, the other monitors your network traffic. But what exactly does a firewall do, and which antivirus software includes this protection as standard? We’ll explain it all in this article – clearly, simply, and with practical examples.
What is a firewall?
A firewall is a digital filter that monitors all incoming and outgoing network traffic. It decides what traffic is allowed through to your computer or network. Think of it as a bouncer checking who gets in and who is turned away at the door.
A firewall protects you from things like:
- Hackers trying to access your PC via the internet.
- Malicious apps secretly trying to send data.
- Unwanted connections from unknown devices in your home network.
There are two types of firewalls:
- Software firewall – often built into security software and works on a device level.
- Hardware firewall – usually built into a router or company network.
For home use, a software firewall is usually sufficient, especially when it’s integrated into a good antivirus package.
What does antivirus software do?
Antivirus software detects, blocks and removes harmful software (like viruses, ransomware and spyware) from your device. While a firewall filters traffic before it enters, antivirus kicks in when something suspicious becomes active on your device. Together, they make a powerful security duo.
A simple comparison:
- The firewall stops the burglar from getting in.
- The antivirus acts if the burglar somehow slips through.
Why is the combination important?
Some threats don’t come through downloads, but through so-called ‘backdoors’ in your network. A firewall actively monitors that traffic and blocks unwanted ports. This stops harmful software from connecting to external servers to steal your data. Antivirus software then identifies any malicious files that may have slipped through. By using both, you cover multiple attack routes.
Examples of antivirus software with built-in firewalls
Not every antivirus package includes a firewall. Basic packages often lack this feature. That’s why we recommend choosing a more complete security suite where a firewall is included as standard.
Here are three reliable options:
Honest advice: what do you need?
If you only browse the web and read emails, a basic antivirus might seem enough. But if you do online banking or download files, a firewall becomes essential.
At Antivirus.eu, we’re happy to help you choose. We offer honest and independent advice so you get the protection that suits you best.
In conclusion
A good firewall combined with antivirus software forms a strong defence against online threats. If you choose a complete solution like Norton 360 Deluxe, McAfee Total Protection or Bitdefender Total Security, you’ll be protected on multiple levels. Have questions about which package suits your needs best? Feel free to contact one of our experts. We’re happy to help you personally.
