Hands Off! 4.0.0 🌟

: It tracks both inbound and outbound network connections to prevent applications from "phoning home".

: Beyond network monitoring, it can block applications from reading or writing to specific files on your disk to protect sensitive data. Hands Off! 4.0.0

Since the tool is no longer actively maintained, you might consider these current industry standards for Mac security: : It tracks both inbound and outbound network

: Users can easily block multiple subdomains and domain name resolving for enhanced security. Recommended Alternatives Hands Off! 4.0.0

: A simpler, "annoyance-free" alternative that works silently in the background without pop-ups or alerts.

HandsOff an Ultimate Firewall for your Mac | Lucideus Research