Would this be analogous to self-defense? A server was trying to hack into his computer (his honeypot). Logically, taking measures to stop the intruder would be

Would this be analogous to self-defense? A server was trying to hack into his computer (his honeypot). Logically, taking measures to stop the intruder would be legally acceptable. Yes, the server could just have been blacklisted, but stopping the problem at its source is more effective imo. Would this be a valid defense if he ever gets accused? Is hacking into the server of a hacker who is hacking you to stop the hack legally acceptable?