Web shield is a component of the avast antivirus program that scans the data you transfer when you surf the web. This helps protect your computer from malware. Web shield also blocks websites and prevents hackers from using your device as a host to hack into other computers. It can also block malicious programs and inform the community to get more information.

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

Avast provides multi-platform protection against spyware, malware, and viruses. It also protects you from scam attacks, ransomware and trojans. It is available on Microsoft Windows, macOS and iOS. The company offers a free version for each platform, as well as a premium version with additional features.

Avast alerts you immediately when it detects the presence of a threat and warns the community of Avast users. If a malicious app is downloaded and installed on your device, this could damage your operating system, cause corruption of your files, or even steal personal information. You can add a website or an app that Avast blocked to your list of prohibited apps should you wish to use it. You can also disable Web Shield or File Shield in order to allow safe apps and websites to run on your device.