Why protecting your personal data has become essential

In 2025, your personal data is more exposed than ever. AI-generated phishing emails can perfectly imitate your loved ones. Voice deepfake scams target your phone. Your likes on social media can be exploited for identity theft. With every click, every scroll, every post, you leave a digital footprint filled with personal information.

The good news? You can significantly reduce your exposure without being a computer expert. Here are the essential best practices to adopt right now.

1. Strengthen your passwords and enable 2FA

Most people use weak or identical passwords across multiple accounts. This is the number one entry point for hackers.

What to do:

  • Use a password manager like Bitwarden (free and open source) or 1Password. These tools generate unique and complex passwords for each account and store them securely. You only have one master password to remember.
  • Enable two-factor authentication (2FA) on all your sensitive accounts (email, banking, social media). Favor authentication apps like Google Authenticator or Authy rather than SMS, as the latter is vulnerable to SIM swapping attacks.

2. Encrypt your communications

Most free email providers scan your messages for advertising purposes. For true privacy:

  • Adopt an encrypted email: services like ProtonMail or Tutanota offer end-to-end encryption. Only you and your recipient can read your messages. Free offerings are available.
  • Use a private messaging service: Signal remains the benchmark for end-to-end encryption and stores virtually no user data.

3. Secure your browser

Web browsers collect and share much more information than most users realize. A few simple adjustments can make a huge difference:

  • Block third-party cookies: in Chrome, enable "Block third-party cookies" in Settings > Privacy and security. On Firefox and Safari, enable "Enhanced Tracking Protection" in "Strict" mode.
  • Regularly clear your browsing data: cookies, cache, and saved permissions. Most browsers allow you to automate this task.
  • Limit site permissions: disable access to your location, camera, and microphone, except as needed.

4. Control your exposure on social media

Social media platforms are among the main sources of data collection and personal risks.

  • Set your accounts to private: on Instagram and TikTok, activate private mode in Settings > Privacy. On Facebook, use the Privacy Checkup tool to restrict the visibility of your posts, friend list, and profile information.
  • Disable location sharing, both in the app and in your device settings.
  • Delete inactive apps and services: most platforms have a "Apps and websites" section where you can revoke access for services you no longer use.

5. Use a VPN on public Wi-Fi networks

Public Wi-Fi (cafes, airports, hotels) are playgrounds for hackers. A VPN (Virtual Private Network) encrypts your internet connection, making your data unreadable to anyone trying to intercept it.

Reliable and free options exist, such as Proton VPN or Windscribe. However, avoid unknown free VPNs that may collect your data themselves.

6. Practice data minimization

The principle is simple: the less you share, the less exposed you are. This is one of the pillars of data protection, enshrined in the European GDPR under the term "data minimization."

  • Only fill out required fields when signing up.
  • Avoid using your real name or phone number on non-essential services. Consider using a virtual number for sign-ups on marketplaces or online services.
  • Regularly delete accounts you no longer use instead of leaving them dormant with your data.

7. Monitor and clean up your digital footprint

There are dozens of sites — called data brokers — that collect and sell your personal information (name, address, contacts) in ready-to-use packages. This data fuels spam, unwanted calls, and even identity theft.

  • Check what information is out there about you: search for your name and email address on engines like Have I Been Pwned to see if your data has leaked during a breach.
  • Request the deletion of your data from data brokers where possible (GDPR right to be forgotten for European services).

In summary

Practice Recommended Tool
Password manager Bitwarden, 1Password
2FA Google Authenticator, Authy
Encrypted email ProtonMail, Tutanota
Private messaging Signal
VPN Proton VPN, Windscribe
Leak checking Have I Been Pwned

Cybersecurity awareness is a basic skill in 2025. These tools and habits are inexpensive, require no technical expertise, and are designed for ordinary users. By adopting them, you significantly reduce your attack surface and regain control of your digital life.

Sources: CM Alliance – Best Tools and Practices for Personal Data Protection in 2025, Typewire – 8 Data Privacy Best Practices for 2025, CISA – Cybersecurity Best Practices