So I've heard some people (even in media, I think) say that in the United States, there's some law (or regulation) about digital/technology companies saying that they must provide access to their users' information to the government (i.e., a backdoor) no matter what. But I can't find any reliable references to that. Can someone please provide me reliable information about any such laws or regulations that exist?



Is there a US law requiring companies to provide the government with access to their users' information?