Every Macintosh device has built-in firewall – a provision that can be constructed to outlaw information from accessing your Mac. Every time you ask data from the Internet, such as email message or a web&hellip
![](https://www.macping.com/wp-content/uploads/2013/01/10-NetMine.jpg)
Every Macintosh device has built-in firewall – a provision that can be constructed to outlaw information from accessing your Mac. Every time you ask data from the Internet, such as email message or a web&hellip