You don't need to risk your device's security to enjoy great South Indian cinema. Here are legitimate platforms where you can watch these movies in high quality, often for a very low subscription fee:

Filmizillacom capitalizes on this by:

) and providing multiple audio tracks, including Hindi dubbed versions. ZEE5 & SonyLIV

Using Filmyzilla or its clones to download or stream South Indian movies carries significant risks:

Here is how the "work" affects the user :

Instead of risking your digital safety, you can find massive libraries of Tamil, Telugu, Malayalam, and Kannada films on licensed platforms. Many of these offer free tiers or affordable subscriptions.