Well, publishers did once try using this law to sue adblockers. But they lost, using an adblocker isn't a violation of the CFAA. They also tried a legal theory

Well, publishers did once try using this law to sue adblockers. But they lost, using an adblocker isn't a violation of the CFAA. They also tried a legal theory under the DMCA's anti-circumvention provision and lost again.