Saw this pop up. As we all know Atlanta was hit by a ransomware attack and it seems that the legislature of Georgia had passed a law in March allowing for active defense of networks. Governor has until May 8th to veto it, but it's very interesting as I wrote my Master's thesis on the legality of active defense.
http://thehill.com/policy/cybersecurity/385743-tech-firms-fret-over-push-to-legalize-defensive-hackingSB 315 2017-2018 Regular Session
I'm definitely interested to understand the why of the exemption they included in the bill.
(2) This subsection shall not apply to:
16 (A) Persons who are members of the same household;
17 (B) Access to a computer or computer network for a legitimate business activity;
18 (C) Cybersecurity active defense measures that are designed to prevent or detect
19 unauthorized computer access; or
20 (D) Persons based upon violations of terms of service or user agreements."
I did find it odd that they did not have an unauthorized access law on the books. But you do have to hand it to them for putting in writing that violations of terms or service or user agreements would not be construed as hacking.
My research didn't show that a lot of companies employed active defense, though that may mainly be because it would be construed as hacking and thus breaking the law.