Do we need AntiVirus or Firewall for MacBook?

Like me, I am sure there must be a lot of users who switch from Windows to Mac. It's but obvious that we are concerned about firewalls & antivirus softwares.

But from what I have read, I have come to understand that it's just a personal choice.

Firstly, there is a good news: Mac OSX has it's own built-in firewall that can be activated in the 'Sharing pref' pane in System Preferences.

Now when it comes to antivirus software, let's see the pros and cons...

Pros:

1) Even though there is not a virus for Mac OSX that doesn't mean there will never be one. Having antivirus software installed makes you proactive in your protection.

2) If we use the machine in a network, antivirus software will help stop us from further infecting the network.

*While your Mac can't be infected by a Windows virus, it can pass it on*

We cannot see any kind of performance decrease or issues when running antivirus software.

Cons:

It eats up resources on some machines

In certain situations it could cause stability issues or kernel panics

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So in the end, it's for us to decide on what we have to choose.

Following are some antivirus softwares available for OSX:

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ClamXAV | Effective, trusted anti-virus and malware scanner for macOS (free)