More and More cyber-attacks on Operating Technologies, this is a good article for us involved in electronic security systems, since our Operating Technolgies such as microcontrollers, controllers, reader interfaces, etc. Unfortunately, if you ask the security manufacturer for a 2-factor authentication to harden the access to them, before you can program to the microcontroller; that is not available yet and there is only encryption in them. Hacker specialized in taking control of our security systems, can create a major vulnerability to those systems installed in major institutions.
Ransomware, Data Breaches Inundate OT & Industrial Sector (darkreading.com)