How to protect your personal data on social media applications


In the digital age, our lives are increasingly exposed on social media. Every photo posted, every like, every comment leaves a trace. Platforms like Facebook, Instagram, and TikTok collect and exploit this data. It is therefore essential to understand how to protect your personal data to avoid misuse, identity theft, or unwanted use of your information. Here is a clear and practical guide to help you take back control of your privacy.

1. Understand what you really share

Before trying to limit the spread of your information, it’s important to be aware of everything you share online. Even seemingly harmless details can reveal a lot about you.

Among the most sensitive data you expose on social media are often:

  • Your name, email address, date of birth, and contact details
  • Your browsing habits and preferences
  • Your locations, places you visit, and social circles

Tip: Avoid sharing personal information such as your email address, phone number, or photos of official documents.

2. Adjust your privacy settings

Social media platforms offer several options to control who sees your content. Take the time to explore the privacy settings of each platform.

On Facebook, check in particular:

signal-2025-07-24-090559_005_resultat-1 How to protect your personal data on social media applications
  • Who can see your posts (friends, public, custom)
  • The visibility of your past posts
  • Whether people can find you using your phone number
  • Facial recognition, which you can disable

On Instagram, make sure to:

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  • Switch your account to private mode
  • Limit who can comment or send you messages
  • Disable automatic geolocation
  • Hide your online status for more privacy

3. Manage permissions for connected apps

When you use third-party services (games, apps, websites), they may have access to your data. It is crucial to regularly monitor the apps connected to your accounts.

Here’s how to do it:

  • On Facebook, go to Settings > Apps and Websites to remove those you no longer use
  • On Instagram, go to Settings > Security > Apps and Websites to revoke unnecessary access

4. Strengthen your account security

Beyond privacy settings, it is essential to technically secure your accounts to prevent hacking and unauthorized access.

Best practices include:

  • Use a strong and unique password for each platform
  • Enable two-factor authentication for an extra layer of security
  • Never log in from public or suspicious devices
  • Avoid clicking on unknown links, even if they come from a contact

5. Be mindful of what you post

Even with proper settings, the best way to protect your data is to think carefully before posting.

To protect your data, avoid making public:

  • Photos of your children or your home
  • Your real-time location (especially while traveling)
  • Sensitive opinions or health-related information
  • Screenshots containing private data

Tip: If you wouldn’t feel comfortable seeing your post shared in a public group, don’t post it at all.

6. Update your apps and review your settings

Social media platforms regularly update their privacy policies and introduce new options. You need to stay vigilant and proactive.

Here’s what you should do every two to three months:

  • Update your apps to benefit from the latest protections
  • Review all your security settings
  • Carefully read notifications related to privacy or security

Protecting your personal data on social media is mainly about adopting the right habits: controlling your settings, securing your access, filtering what you share, and staying informed. It’s not complicated, but it does require consistency.

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Je suis stagiaire en rédaction web SEO, passionné par les nouvelles technologies, les smartphones et l'intelligence artificielle. En effet, je rédige des comparatifs, des guides d'achat et des contenus optimisés pour le web afin de fournir des informations claires, fiables et pertinentes. Par ailleurs, je possède des compétences en maintenance informatique, ainsi qu'en création de logos, d'affiches publicitaires et de divers supports graphiques. De plus, je maîtrise parfaitement Microsoft office ainsi que plusieurs logiciels de comptabilité, ce qui me permet de concevoir des documents professionnels et de gérer efficacement différentes tâches administratives et comptables. Enfin, grâce à ma polyvalence et à mon expérience, je mets mes compétences au service des particuliers, des entreprises et des organisations afin de les accompagner efficacement dans leurs projets numériques, graphiques et professionnels.

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