There are two main uses for using a VPN outside of your country. One is accessing all the content you love in Hungary. For example, if a website is blocked for some reason (like Facebook in China), a VPN will allow you to reach it no matter where you are in the world.
The second but no less critical use is protecting your data. As a traveler, you can fall victim to a multitude of traps set to you by criminals. Using public Wi-Fi is probably the number one dangerous thing you’ll do as a tourist. Encrypt your data with a VPN and foil hackers that are stalking hotspots for information to steal.