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Defend your Rooted Android Device with AFWall+ the Firewall based on Netfilter

Posted on 2015-12-26 20:28:24 by Marica Panunzio - 0 Comments

For most Android users, rooting is a great way of getting 100% out of your device without the general restrictions that come with a non-rooted device. However, besides voiding the warranty, rooting also makes your device extremely vulnerable to attack, that is unless you are capable of shielding it. 

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Most attacks are usually via internet connections, be it WiFi, LAN or even your device's mobile data connection. Internet based attacks or hacks are usually based on exploiting the vulnerabilities in or lack thereof of a firewall.

Increase security of your rooted device

Simply put a firewall is a security system that protects from Internet based hacks and attacks and prevents malicious code from stealing sensitive data from your device and sending them to external servers. The Android Firewall Plus (AFWall +) app is an Android application, based on an open source project, designed to protect your rooted Android device giving you the full control over network access. The whole point of rooting a device is to gain more control over the device and this app provides all that and more with simplicity. Built on the linux netfilter or more specifically iptables, the app is coded to provide maximum control over your applications and the connections established with your device.

Avoid sensitive data stealing

Applications are always sending information back and forth over servers. Most of this information is user data that could be damaging if in the wrong hands. On a non-rooted Android device, you have no control over what application can send or receive data through your phone. With a rooted device and this app however, you can control the communication protocols for your installed applications. Even better, you can monitor and control all other connections be they VPN, mobile data, LAN, WiFi or any other.

Block advertising

A lot of apps require full access to Internet not because of their features but just to be able to show you advertisement banners. Using AFWall+ you can prevent them from accessing network and as consequence you can stop the tedious advertising.

Other features

Aside from that, the app comes with other functionalities. The app lock feature for instance, is one of the many other beneficial features of the app, providing privacy and security for your apps. Similarly, the app has an app viewer complete with search algorithms for installed apps. The app also has a file explorer capable with read/write functions of internal and external storage media. The user interface is extremely superior giving you the ability to create and control user profiles on your device but even with its superior features, it is still very simple and easy to use. Custom user interface features such as icon colour are also available. The iptables binary can also be customized, if you have the technical know-how.

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Reassuming, the AFWall+ app is a great app that can help you to:
  • protect your device from external attack
  • avoid sensitive data stealing
  • reduce data traffic
  • block unwanted advertising


The app is available on TorrApk where it can be downloaded for free. It comes with a wide range of languages, including all the major ones, with more to be rolled out in the near future.

Marica Panunzio
Marica is a lover of arts, design and technology. She loves reading books and she is a blogger for passion. She was born in Italy but she likes to think that the world is her home.
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