Would this be for "online services" only, or would operating system vendors have to decrypt users' encrypted file systems on demand?
Answer: according to the article "any device that has more than a gigabyte of storage and sells more than a million units a year could have to build a government-required backdoor if it is subject to five warrants or other requests, as would any operating system or communication system with more than a million active users."
Answer: according to the article "any device that has more than a gigabyte of storage and sells more than a million units a year could have to build a government-required backdoor if it is subject to five warrants or other requests, as would any operating system or communication system with more than a million active users."