Critical Bug in Siemens SIMATIC PLCs Could Let Attackers Steal Cryptographic Keys

A vulnerability in Siemens Simatic programmable logic controller (PLC) can be exploited to retrieve the hard-coded, global private cryptographic keys and seize control of the devices.
“An attacker can use these keys to perform multiple advanced attacks against Siemens SIMATIC devices and the related TIA Portal, while bypassing all four of its access level protections,” industrial cybersecurity