US Patent 11341240 Web-based malware mitigation system

A system for reducing the effects of unwanted software (“malware”) is described having a user computing device which runs on a user operating system (UOS) and a user web browser coupled by a limited communication link to a host computing device including VM executable code for emulating a virtual machine, a virtual OS which runs on the virtual machine and a web browser adapted to run on the virtual OS. The limited communication link connected between the user computing device and the host computing device is adapted to pass certain user input communications (signals from the input devices) from the user computing device to the host computing device; and pass certain output communications (signals to output devices) from the host computing device to the user computing device thereby restricting malware from being introduced to the user computing device.