They are concerned that the bill could undermine end-to-end encryption - which means the message can only be read on the sender and the recipient's app and nowhere else. The company's Andy Yen has suggested, as a last resort, it could leave the UK if the law comes into force unamended, as it would no longer be able "to operate a service that is premised upon defending user privacy". "There cannot be a 'British internet' or a version of end-to-end encryption that is specific to the UK