Little Snitch is a powerful macOS application designed to enhance privacy and security by monitoring and controlling your computer’s outgoing network traffic.
Sophos has also announced updated Sophos Firewall software that provides enhanced protection against cyberattacks, including the ability to integrate third-party threat intelligence feeds.
Sophos went so far as to plant surveillance “implants” on its own devices to catch the hackers at work—and in doing so, revealed a glimpse into China's R&D pipeline of intrusion techniques.