Your IP address is like a digital home address-it tells websites, services, and even hackers where to find you. But what happens if your IP address gets exposed, even when you think it's hidden behind a VPN? This is called an IP leak, and it can compromise your privacy without you even knowing. The good news? You can easily perform an IP leak test to ensure your online activities stay private. And the best part? It doesn't cost a dime. In this guide, we'll walk you through what an IP leak is, how to test for leaks, and how to secure your IP address-all using free tools.