Web shield is an important element of the avast antivirus software that scans for data when you surf the internet. This safeguards you against malware and prevents it from running on your computer. Web shield blocks websites and stops hackers from using your computer as a host to hacking into other computers. It can block unwanted software and notify the community to get more information.

The avast web security uses advanced technology to block and detect the most recent threats. It scans files and applications in real-time as they are downloaded or opened. It can also detect ransomware that locks certain files on your device and demands payment to unlock them. It also detects trojans which disguise themselves as genuine software and insert malware into your system.

Avast provides multi-platform protection against malware, viruses and spyware. It also protects you from ransomware, fraud attacks and trojans. It is available for Microsoft Windows, macOS, Android, and iOS. The company provides the free version for each platform and an upgraded version that includes more features.

When Avast detects a threat it immediately warns you and alerts its community of users to the danger. If a malicious application is downloaded and then run on your device, it can cause damage to your operating system, cause corruption of your files, or even steal personal information. You can add a website or application that Avast blocked to your list of prohibited apps when you decide to use it. You can also disable Web Shield or File Shield to allow secure websites and apps to run on your device.