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Question: Should I disable file sharing on my iMac for better security?

I read in EtreCheck's tips section today that it is wise to disable file sharing in System Preferences on a Mac because it interferes with the Firewall somehow. Would this apply to an iMac that is used only in your home or does that matter? I am confused by this. Please advise.

iMac, macOS High Sierra (10.13.1)

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From: Mac - AirPort Express - Apple

Get online safely and securely.

AirPort Express includes a built‑in firewall that creates a barrier between your network and the Internet, protecting your data from malicious attacks. When you set up AirPort Express, the firewall is automatically turned on, so you don’t have to do a thing. Except enjoy the web with peace of mind.

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Nov 15, 2017 3:36 PM in response to JazzmanJohn In response to JazzmanJohn

If you are not sharing files then don't enable sharing. If you are sharing files then enable sharing. Remote computers can not see your computer on your local private network. Make sure you have secured your router. If I have misinterpreted your question please provide more details.

Nov 15, 2017 3:36 PM

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Nov 15, 2017 6:33 PM in response to JazzmanJohn In response to JazzmanJohn

From: Mac - AirPort Express - Apple

Get online safely and securely.

AirPort Express includes a built‑in firewall that creates a barrier between your network and the Internet, protecting your data from malicious attacks. When you set up AirPort Express, the firewall is automatically turned on, so you don’t have to do a thing. Except enjoy the web with peace of mind.

Nov 15, 2017 6:33 PM

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Question: Should I disable file sharing on my iMac for better security?