> you let the whole system die and see if company can recover or continue either with disaster recovery or paper based process or combination of multiple strate

> you let the whole system die and see if company can recover or continue either with disaster recovery or paper based process or combination of multiple strategy. You're not describing a security breach scenario here but basically a disaster scenario. It's security vs. resiliency. I mean there are plenty of threat models to protect from, hackers trying to steal secrets, hackers trying to take down your systems, etc. But in the end security is about making sure you detect and/or stop the attacker, other processes take care of rebuilding after they took you down. So you wouldn't hire an ethical hacker to take down your systems but rather to identify weak points, exploit them, infiltrate the system and then possibly exfiltrate data. The aftermath of what the hacker did is something else entirely and will be dealt by your disaster recovery, business continuity processes, PR, etc.