In comparison, hardware firewalls are usually built into routers or other network devices. Firewall applications on Android are programs that monitor the traffic to and from your device. As long as your device is connected to the internet or any other external network, a firewall is necessary to safeguard you from unwanted cyberattacks.Īlso read: How to take screenshots in restricted apps on Android How a firewall app works?Ī firewall can be installed either as an application or hardware. Without a firewall, viruses could have unrestricted access to your device. Without a firewall installed on your device, you have a constant threat of having your security and privacy compromised. The firewall will also prevent the user from entering suspicious websites that could potentially be a host for viruses and malware. This is where the firewall comes into play.Ī firewall app in Android prevents unknown sites and malware from gaining unauthorized access to your device. Such sites put your private information and data at risk of getting tampered with or stolen. While browsing online or installing apps, you may be at the risk of running into a malicious site. Internet is a vast space with millions upon millions of sites and connections. Do you install apps from unknown sources other than Play Store? Then before using such apps, you must know what a firewall is and how you can keep yourself miles away from attackers and potential viruses.

What does the allshare app do