They're wrong, the relevant part of the DMCA is http://www.copyright.gov/title17/92chap12.html#1201 http://www.copyright.gov/title17/92chap12.html#1201 and the

They're wrong, the relevant part of the DMCA is http://www.copyright.gov/title17/92chap12.html#1201 http://www.copyright.gov/title17/92chap12.html#1201 and the most recent list of exemptions is https://public-inspection.federalregister.gov/2021-23311.pdf https://public-inspection.federalregister.gov/2021-23311.pdf