How do you protect against an arsonist lighting a forest on fire? The number one method is by setting up your property to be fire safe.
Really the days of being able to cast blame on the hacker, or even expecting anything to be done about it are over. Threat actors with AI have an absolutely massive amount of leverage in attacking and any weaknesses you have in your systems security posture and will be relentlessly exploited in incredibly short periods of time allowing horizontal and vertical exploitation. You will be ruined in mere moments, while punishment for the hacker may be years or decades away, if ever.