Dear all. How secure is STM32 MCUs to prevent hackers from dumping the firmware from the flash memory? I've searched on the internet and on Taobao (like ebay) China and I found there are plenty of companies that claim they can crack and dump the flash code for almost any STM32 MCUs. Below is an example link :
https://item.taobao.com/item.htm?spm=a230r.1.14.15.1275936aMaVbKE&id=556508470444&ns=1&abbucket=10#detail
I believe they have tools the decap a MCU and connecting the wires by FIB or some technologies to the silicon die to dump the code in the flash memory. This is a very big threat to people like us who works on STM32 MCUs. I would like to know STMicroelectronic's opinion regarding this issue. Is setting RDP level to 2 (disconnect debugging port permanently) a more secure way to protect the firmware from being dumped? Anything we can do to prevent piracy? I've read from some Chinese forum that the UID of a STM32 MCU can also be changed easily.
Chris
