As far as MCU (microcontroller unit) crack is concerned, the security of hardware in microcontrollers is on the constant improvement. It is simply because the tools and technology for MCU crack and clone are GETTING Hi-tech, more sophisticated, more advanced and better. The rapid co-evolution is always carried out and driven by this continual fight taking place between chip makers and chip attackers across the globe.
Another significant threat which must be taken into account is that a large number of second-hand semiconductor making and testing tools and equipments arrive in the market. It cannot be utilized in order to crack high-end MCUs, but must be more than enough to crack MCU chips that are manufactured containing older technology.
For instance, while 90 nm manufacturing technology is off late on the leading-edge, so most MCUs are brought in the market with 0.35 m technology along with smartcards built on 0.25 m technology. We, at Fu-Hsing technologies have come a long way as a MCU Unlock and MCU Unlock Service Provider in China and India having a formidable reputation within the industry.