NetBarrier
NetBarrier is a macOS firewall app from Intego that helps control incoming and outgoing network connections on your Mac.
What is NetBarrier?
NetBarrier is a macOS security app focused on firewall protection and network connection control. It helps users protect their Mac by filtering incoming and outgoing traffic, choosing security profiles for different network environments, and setting rules for how apps use the network. This makes it useful for people who move between home, work, and public Wi‑Fi and want clearer control over what can communicate with their Mac. NetBarrier also includes monitoring tools and logs so users can review network activity and connection events. Its main role is to give Mac users a more configurable network firewall interface than the default system settings, especially when they want app-level connection oversight and profile-based protection.
Key features
- Choose different firewall profiles for home, work, public hotspot, and VPN use
- Block or allow incoming and outgoing network traffic based on your current network
- Control how specific apps are allowed to access the network
- Create exceptions for ports, apps, and local devices when needed
- Monitor network activity and review connection logs
- Automatically remember network profile choices for known networks
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Safety overview
Status: Mostly safe
NetBarrier is legitimate security software whose network filtering and background protection are normal for a firewall app. It may request access needed to monitor and manage network connections, and stricter rules can interrupt internet access, file sharing, or local device communication if configured too aggressively. Keep its rules simple unless you specifically need custom exceptions, and review any prompts carefully before allowing or blocking traffic.
Recommendation: Keep NetBarrier if you use it for firewall control or network monitoring on your Mac. Remove it only if you no longer want its protection features or prefer to rely on macOS built-in network controls, understanding that any custom NetBarrier rules and monitoring features will stop working.
Common paths
/Applications/NetBarrier.app
Support paths
~/Library/Application Support/Intego
Preference paths
~/Library/Preferences/com.intego.app.netbarrier.plist
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