Glauben Sie, dass Sie sicher sind, nur weil Sie ein VPN benutzen?

CRYPTV4CE
15 Februar 2025

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DNS is a weak point that may track everything you do

Many people are unknowingly sharing their data. In this post, I’ll show you how to check if you’re one of them and how to fix it quickly.

Your browser needs to find the right website every time you type an address. That’s the role of DNS servers.

The issue?

➔ By default, you use your internet provider’s DNS
➔ These DNS servers keep records of your searches, habits, and activities

Even if you use a VPN or clear your history, the information is still stored. It can be sold or used against you.

A poorly set up VPN can lead to DNS leaks.

What’s the problem?

➔ Your DNS requests go outside the secure tunnel
➔ Your ISP can monitor the websites you visit
➔ Your “anonymity” is lost quickly
✓ Many believe VPN = safety

But if your DNS isn’t secure, you are at risk.

You think your VPN keeps you safe

But you’re using 1.1.1.1, 8.8.8.8, or your ISP’s DNS. That means even if your traffic is encrypted, the sites you visit might still leak outside the tunnel. This isn’t just a small mistake, it’s one of the most common privacy failures.

Your Internet provider can tell you’re using a VPN, even if they can’t see what you browse

But if your VPN doesn’t have its own DNS, or if your setup is wrong, your DNS queries might leak. What does this mean? You believe you’re safe, but your requests could be handled by Google or your provider. Many think a VPN hides everything, but DNS leaks can occur. Ensure your VPN has its own secure DNS to avoid revealing more than you think. You can use tools like:

www.controld.com/tools/dns-leak-test

They can help check if your DNS requests are leaking outside your VPN.

Popular VPNs like Mullvad and iVPN offer built-in protection against DNS, IPv6, and WebRTC leaks, but this only works if they are updated and set up correctly.

⚠️ Caution: Some apps use fixed DNS servers, which can ignore your VPN settings and expose your data. This is known as “DNS hardcoding.”

To stay protected, use privacy-focused public DNS like Quad9 (blocks malware) or AdGuard DNS (blocks ads, trackers, and harmful sites; supports secure DNS methods: DoH, DoT, DNSCrypt).

On Android, apps like RethinkDNS and NetGuard allow you to control how apps resolve domain names, keeping you safe even if an app tries to bypass your VPN.

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Your metadata, like when and how you connect, can still be seen by others even with safe VPNs and DNS

Organisations like the 14 Eyes countries use this information for broad surveillance. That’s why using tools like Tor or multi-hop VPNs is important to make it harder to track you. Want to really protect your privacy? Just encrypting isn’t enough; you also need to hide your metadata.

Now that you understand the importance of protecting your data, here are some simple tools and habits I use to reduce risks:

1. Use private browsers like Brave.
2. Choose VPNs that provide multi-hop.
3. Set up secure DNS.
4. Avoid using unprotected public WiFi.
5. Check app permissions for accessing your data.

Privacy is an ongoing journey, not a final goal.

Wie sichern wir Ihre Hardware für die Kommunikation?

✓ Gerät privat gekauft
✓ DeGoogled das Gerät mit einem sicheren Android-basierten Betriebssystem
✓ Die Installation des Betriebssystems und die Einrichtung der Anwendungen erfolgt über eine sichere, verschlüsselte Verbindung, die wöchentlich auf Lecks überprüft wird.
✓ Nutzt vertrauenswürdige Apps wie Threema, Silent Circle und Premium-VPNs wie iVPN, Mullvad und ProtonVPN, die sicher gekauft wurden
✓ Virtuelle Nummern für Boten auf Anfrage verfügbar
✓ Es werden keine Geräte oder App-Konten in unserer Datenbank gespeichert.
✓ Entfernen von unnötigen App-Berechtigungen
✓ Es werden nur autorisierte Apps verwendet, bei denen die Privatsphäre im Vordergrund steht.
✓ Versand weltweit möglich, mit Abholung in der Nähe
✓ Zahlungen können per Banküberweisung oder Kryptowährung erfolgen. Stellen Sie sicher, dass Ihr Portemonnaie privat ist, oder suchen Sie einen lokalen Krypto-Händler auf.

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