http://www.iykpqm7jiradoeezzkhj7c4b33g4hbgfwelht2evxxeicbpjy44c7ead.onion/deeplinks/2018/03/building-secure-messenger
Beyond encryption, all that’s left are the remaining details of product trade-offs and implementation difficulties, which is where the hottest debate over secure messaging lies. Next: Important Details That Are Hard to Perfect Every secure messaging app has to worry about code quality , user experience , and service availability . These features are hard to perfect, but putting no effort into them will render an application unusable.