Checkout Lockdown, an open source firewall for iOS! : r/ios

Cannot find iPhone via network (idevice_id -n) · Issue #88 · libimobiledevice/libusbmuxd · GitHub

Privacy Review of iOS apps from Lockdown : r/privacy

Block Data Tracking Attempts with Lockdown: A Free, Open-Source Firewall for Your Mac, iPhone, and iPad

What is the most secure browser for iOS? - Quora

Lockdown' open source firewall app leaps from iOS to Mac, blocks app and website trackers for free - 9to5Mac

Lockdown Enterprise STIG and CIS Baseline Automated Remediation

All-In-One Security (AIOS) – Security and Firewall – WordPress plugin

Use a Firewall to Keep Data-Hungry Apps in Check « Android :: Gadget Hacks

Bringing Cybersecurity Hiring Out From Behind The Firewall

Lockdown brings open source firewall to iOS

Lockdown is a New Open Source Firewall for iPhone - iClarified