Someone reverse engineered FTDI driver on the EEVBlog forum and its not specifically detecting fakes. Its doing EXACTLY SAME procedure without discrimination -

Someone reverse engineered FTDI driver on the EEVBlog forum and its not specifically detecting fakes. Its doing EXACTLY SAME procedure without discrimination - it is issuing illegal (and ignored on real chip) write to eeprom. There is no detection, just some fuzzing with illegal instructions.