Apple Resources - Turn on Mac Firewall
http://edu-observatory.org/olli/Manage/Firewall.html

Firewall security in macOS
  https://support.apple.com/guide/security/firewall-security-seca0e83763f/web        



 

Change Firewall settings on Mac
  https://support.apple.com/guide/mac-help/change-firewall-settings-on-mac-mh11783/mac   

Block connections to your Mac with a firewall
  https://support.apple.com/guide/mac-help/block-connections-to-your-mac-with-a-firewall-mh34041/mac   

Apple Platform Security
  https://help.apple.com/pdf/security/en_US/apple-platform-security-guide.pdf   




     
     
     

 
    sam.wormley@icloud.com