Certain excemptions are provided in the DMCA, and have been established via jurisprudenence: https://www.federalregister.gov/documents/2021/10/28/2021-23311/ex

Certain excemptions are provided in the DMCA, and have been established via jurisprudenence: https://www.federalregister.gov/documents/2021/10/28/2021-23311/exemption-to-prohibition-on-circumvention-of-copyright-protection-systems-for-access-control https://www.federalregister.gov/documents/2021/10/28/2021-23... Geeks often think that the law is some sort of blockchain-esque thing that is absolute, context-free and machine-interpretable. In reality, many laws require 'guilty intent' (mens rea). This is why we have 'judges', who perform 'judgement'. So the same tool called 'no-cd', marketed as a backup tool may be judged 'OK', where 'WaR3z HaCk.exe' published by a group of known software pirates will be judged 'anti circumvention'