Learn more about iOS networking, and keep your data safe and private!

A Practical Guide to Networking, Privacy & Security in iOS 9

Glenn Fleishman

This independent book from Glenn Fleishman teaches you how to use an iPhone or iPad with iOS 9 on Wi-Fi and cellular/mobile networks securely, controlling your privacy, and protecting your data. It also covers tracking an iOS device, content-blocking Safari extensions, using AirDrop and AirPlay, and solving connection problems.

This product has been discontinued.

This independent book from Glenn Fleishman of Aperiodical teaches you how to use an iOS 9 device on Wi-Fi and cellular/mobile networks securely, making connections with ease while protecting your data and controlling access to your private information. It also covers Bluetooth networking and Location Services.

The iOS 11 edition of this title is available! See A Practical Guide to Networking, Privacy & Security in iOS 11.

Whether you are new to iOS or an experienced user hoping to stay up-to-date on the latest iOS 9 quirks (such as Wi-Fi Calling, Apple’s new two-factor authentication, and Safari ad blocking), you’ll find helpful directions, useful tips, and intriguing background information. Glenn also explains how your private details — who you are, sites you visit, and where you physically go — are shared with Apple and others, and how to restrict or block that sharing. On the security side, he walks you through scenarios from securing your data in transit to connecting to a secure Wi-Fi network to dealing with a lost iPhone.

Hey, What’s This?
We can focus our attention on only so many books, so when our friend and longtime collaborator Glenn Fleishman proposed creating this book on his own, we jumped at the chance to bring it to you alongside our Take Control titles. It’s his book, so it looks a little different, but the content is rock solid.

You’ll get the most out of your network connections by learning how to:

  • Troubleshoot problematic Wi-Fi connections.
  • Master all the options for a Personal Hotspot.
  • Know which radios are on (cellular, Wi-Fi, Bluetooth, and GPS) — and turn them on and off whenever you like.
  • Plan and manage your cellular data usage.
  • Make phone calls over Wi-Fi with Wi-Fi Calling.
  • Decipher common and uncommon Wi-Fi and cellular icons that can appear on the status bar.
  • Find the new-in-iOS-9 Wi-Fi Assist switch, and know when to use it.
  • Stream music and video to other devices with AirPlay.
  • Transfer files between iOS and OS X with AirDrop.

You’ll find strategies for keeping your data private:

  • Know what kinds of data can be leaked and consider your privacy settings.
  • Block creeps from iMessage messages, FaceTime, and phone calls.
  • Load pages faster, use less data, suppress ads, and be less trackable with Safari content-blocking extensions. Glenn describes types of blockers and gives capsule reviews of three: Crystal, Blockr, and 1Blocker.

You’ll learn about securing your data in transit and on your device:

  • Connect to a WPA2 Wi-Fi network in home and corporate scenarios.
  • Understand and set up Apple’s new two-factor authentication.
  • Secure data in transit with a Virtual Private Network (VPN) connection.
  • Protect your device against intruders, and use Find My iPhone to deal with it going missing.
Glenn Fleishman

About Glenn Fleishman

Glenn Fleishman is a veteran technology writer who has contributed to dozens of publications across his career, including Macworld, Fast Company, and Increment. He has also written dozens of editions of books in the Take Control series. He spent 2019 and 2020 building 100 tiny type museums full of real printing artifacts. Glenn lives in Seattle with his wife and two children.


  • Connect to a Wi-Fi Network
  • Wi-Fi Troubleshooting
  • Make a Mobile Hotspot
  • Choose to Use Cellular Data or Wi-Fi
  • Manage Cell Data Usage
  • Airplane Mode
  • Set Up Bluetooth
  • Exchange Files with AirDrop
  • Stream Music and Video via AirPlay


  • Connect to a Secure Wi-Fi Network
  • Use Two-Step Verification
  • Transfer Data Securely
  • Protect Your Device
  • When Your Device Goes Missing

You may also like…