This invention describes a way to make online financial transactions very secure. It works by having a central secure server and a special software module on the user's computer, called a virtual appliance. This virtual appliance creates a completely isolated space on the user's computer where the transaction happens, preventing other programs from seeing or interfering with it. The secure server then authenticates the transaction before it can be completed.
Why it matters: Filed in 2008, client-side virtualization for secure transactions was less common and performant. Today, mature virtualization, containerization, and hardware-backed security features in consumer devices make implementing such a secure virtual appliance more feasible and robust.
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