5 Tips for Enhancing Privacy Controls on Your Mobile Phone

Published at 13:02 on 23 May 2025

Mobile phones have become an integral part of our daily lives, storing vast amounts of personal information, from contacts and messages to photos and sensitive data. With the increasing prevalence of digital threats and intrusive device searches, it is crucial to take proactive steps to protect your privacy. 

Mozilla news recently shared a host of helpful tips via its newsletter. We’ve adapted those tips here to help you improve the privacy controls on your mobile phone:

Table of Contents

Regular Digital Spring Cleaning

One of the simplest yet most effective ways to enhance your mobile phone’s privacy is through regular digital spring cleaning. Periodically review your apps, messages, files, and photos. Be especially vigilant with sensitive content—if you don’t need it, delete it. This not only frees up valuable storage space but also reduces the amount of personal information that could be accessed in case your device is compromised. Many apps collect and store data that you may no longer need, so take the time to uninstall any applications that are no longer useful.

Keep Your Operating System Up to Date

Keeping your mobile phone’s operating system up to date is essential for maintaining robust privacy controls. Regular updates often include security patches that fix vulnerabilities and improve the overall security of your device. Those persistent update notifications might be annoying, but they play a vital role in safeguarding your personal information. Make it a habit to install updates as soon as they are available to ensure that your device remains protected against the latest threats.

Enable Strong Encryption and Passwords

Encryption and strong passwords are your first line of defence against unauthorized access to your mobile phone. Use long, unique passcodes that combine letters, numbers, and special characters (alphanumeric is best). Avoid using easily guessable passwords such as “123456” or “password.” 

Additionally, enable encryption on your device to protect the data stored on it. Most modern smartphones offer encryption options that can be activated in the settings. This ensures that even if your device falls into the wrong hands, your data remains secure.

Use Secure Messaging Apps

Standard text messages offer minimal protection against prying eyes. To enhance the privacy of your communications, consider using secure messaging apps like Signal, which provide end-to-end encryption. End-to-end encryption ensures that only the intended recipient can read the messages, preventing interception by third parties. Apps like Signal also offer additional features such as disappearing messages, which automatically delete after a set period, further enhancing your privacy.

Use Browsers Instead of Dedicated Apps

While dedicated apps can offer convenience, they also tend to store a lot of persistent data that could be accessed if your device is compromised. Instead, consider accessing email or social media platforms through web browsers and logging out after each use. This creates less persistent data and reduces the risk of unauthorized access. Additionally, using browsers allows you to enable privacy-enhancing features such as private browsing modes and cookie blockers, which can further protect your online activities.

And some more tips

All phones come with various built-in privacy settings that can help you safeguard your personal information against unauthorized access and digital threats and help set up the above recommendations. The following is some more specific advice:

Enable screen lock: Protecting your phone starts with setting up a strong screen lock. This prevents unauthorized access to your device.

  • Go to Settings.
  • Select Security.
  • Tap on Screen lock.
  • Choose between Pattern, PIN, or Password and set it up.

Encrypt your phone: Encrypting your device helps protect the data stored on it.

  • Go to Settings.
  • Select Security.
  • Tap Encrypt phone and follow the instructions

Conclusion

By following these five tips, you can significantly improve the privacy controls on your mobile phone and protect your personal information from digital threats (and smooth possible problems with boarder crossings). Remember, privacy should be the default—not the exception. Taking these proactive steps will help ensure that your mobile phone remains a secure and private tool in your daily life.

Other resources

Our checklist is taken from Mozilla advice on privacy for your phone.  Here are some other resources that might be helpful:

Privacy, security and training. Jodie is one of Australia’s leading privacy and security experts and the Founder of Privacy 108 Consulting.