Firewall and Antivirus are the two terms that are used in the cyber security space that protect our systems and device. A firewall is a software and hardware-based system that monitors the incoming and outgoing network activity on our system while an antivirus is software that removes the threats in the system and recovers our system from viruses. In this article, we will cover the differences between the firewall and antivirus.
What is Firewall?
Firewall is the specified version of router. In this all data packets are entering or leaving the network pass through firewall and after examine firewall decide whether to allow or not.In firewall all traffic must pass through it and only authorized traffic should be allow to pass. Firewall should be strong. 
What is Antivirus?
Antivirus is an application or software which provides security from the malicious software coming from the internet. An antivirus chases the method in which it performs 3 actions which are:
- Detection
- Identification
- Removal
Antivirus deals with both external threats and internal threats. It is implemented only software not in hardware also. 
Difference between Firewall and Antivirus
| Firewall | Antivirus |
|---|---|
| Firewall is implemented in both hardware and software. | Antivirus is implemented in software only. |
| Firewall deals with external threats only. | Antivirus deals with both external threats and internal threats. |
| In firewall counter attacks are possible such as IP Spoofing and routing attacks. | In antivirus no counter attacks are possible after removing the malware. |
| Firewall works on monitoring and filtering. | Antivirus works on Scanning of infected files and software. |
| Firewall checks the threat from incoming packets. | Antivirus checks the threat from malicious software. |
| Firewall saves the system from all kinds of threats to the system. | Antivirus saves the system only from viruses. |
| Firewall's programming is complex than antivirus. | Antivirus's programming is simpler as comparison to firewall. |
Conclusion
A firewall detects the malware that enters into the system or we can say it stops the malicious activity that enters into our system. On the other hand, an Antivirus removes the malicious infected file in the system and recovers from the virus.
