A factory runs a CNC machine controlled by Windows 95 software. The original USB dongle is physically broken, and the vendor went bankrupt in 2002. Replacing the machine costs $500,000. An emulator, created from a backup dump of the broken dongle, keeps the factory running.
Different protection systems have different vulnerabilities: usb dongle emulator
Under the Digital Millennium Copyright Act, Section 1201, it is illegal to "circumvent a technological measure that effectively controls access to a copyrighted work." A USB dongle is explicitly a technological measure. Creating or using an emulator to bypass it is a felony, regardless of your ownership of a physical key. A factory runs a CNC machine controlled by
Beyond legal trouble, practical risks abound: An emulator, created from a backup dump of
A USB dongle emulator intercepts the communication between the software and the operating system’s USB driver. Instead of forwarding the request to a physical USB port, the emulator: