Phones and Tablets

Introduction

Mobile devices have become our primary gateway to the digital world since the iPhone’s introduction in 2007. These pocket computers store vast amounts of personal information, track our locations, and serve as extensions of our minds. While they’ve revolutionized how we live and work, they’ve also become one of the most significant threats to our digital privacy, collecting unprecedented amounts of sensitive data about our daily lives.

Providers

Apple iOS

Apple positions itself as a privacy-focused company, with features like App Tracking Transparency and Privacy Labels. However, the closed ecosystem still collects significant user data. In 2021, iOS 14.5’s privacy features revealed that many apps were secretly tracking users, leading to industry-wide changes in mobile advertising.

Google Android

The world’s most popular mobile OS is deeply integrated with Google’s services and advertising network. While offering more customization than iOS, Android devices typically collect extensive user data. In 2018, an investigation revealed Android phones sent location data to Google even when location services were disabled.

GrapheneOS

A privacy-focused Android-based operating system that removes Google services and adds enhanced security features. It’s completely open source and designed to minimize data collection while maintaining functionality. Used by privacy advocates and security researchers. GrapheneOS receives security patches more frequently than other Android operating systems.

CalyxOS

Another privacy-focused Android alternative that offers a middle ground between security and usability. It includes optional Google services through microG, making it more accessible for average users while still prioritizing privacy.

Risks

End of Life

Devices that are no longer receiving security patches and updates are vulnerable to attacks and exploits.

Compulsory System Apps

Device manufacturers can force install applications to your device without your knowledge or consent. In early 2025, Google pushed an application to billions of Android devices called SafetyCore which was intended to ‘protect’ consumers by scanning their media and messages for dangerous or inappropriate content.

Recommendations

Choose a privacy-focused operating system or carefully configure stock OS privacy settings
Use web apps instead of native apps when possible to reduce data collection
Regularly audit app permissions, especially for location and contacts
Keep your device’s operating system and apps updated
Be cautious with free apps that likely monetize through data collection
Use app alternatives that respect privacy (e.g., Signal instead of WhatsApp)

Actions

Audit all installed apps and remove unnecessary ones
Replace apps with privacy-friendly alternatives where possible
Review and restrict app permissions, especially for location and contacts
Update your device’s operating system to the latest version
Check the date of you device’s security patch and consider an upgrade
Enable encryption on your device if not already enabled
Set up a secure lock screen with a strong password
Disable unnecessary system features (e.g., unused wireless protocols)
Review and adjust all privacy settings in your device’s configuration