Norton 360 firewall and Macbook Air firewall, ok together?

nancy solomon wrote:

On old Macbook Pro (2015) had to turn off Apple firewall to use Norton-they were not compatible. Just got new Macbook Air, any issues with Norton and Apple together now?

Third party AntiVirus is not recommended— it typically does nothing but add issues to the macOS and competes directly with Apple’s own built in security:

macOS - Security - Apple macOS - Security - Apple

Apple Platform Security - Apple Apple Platform Security - Apple Support

Uninstall all third party apps that are Cleaners/Optimizers/Anti-Virus/VPN

Protecting against malware in macOS

Protecting against malware in macOS - Apple Support

Recognize and avoid phishing messages, phony ...

Yes, it is really enough. If you have a Network Address Translation router (it’s hard to find one that is not), you are already isolated from the internet, so any other “firewall” is superfluous.

Also, a firewall is not internet security. It is a network management tool used to isolate parts of a network from the others. For instance, to isolate HR data away from unauthorized users and keep the data off other network servers.

Unless you poke a hole in that router through port forwarding, nothing on the internet knows your computer is connected.

When you send an http request through a web browser, it does give away some info, but Apple obscures it by passing an old version of Safari and macOS Catalina as the OS.

See this to keep yourself safe on the internet: Effective defenses against malware and ot… - Apple Community

nancy solomon wrote:

An Apple advisor recommended Malwarebytes. Is Apple internet security really enough? Would love to not pay for extra protection.

You do not need to pay for extra protection.

Malwarebytes is recommend only if you encounter an issue, at that point there is a free version—you do not need to run this app full time. Otherwise no not needed and can be removed.