Besides that, if slack had IRC enabled and e2e you would be able to connect via IRC and actually verify that e2e is doing its job (ie. connect via irc and see s

Besides that, if slack had IRC enabled and e2e you would be able to connect via IRC and actually verify that e2e is doing its job (ie. connect via irc and see scrambled texts). One problem with all these closed client apps slack (with this update)/whatsapp/telegram is that there is no way to verify/audit it is actually doing proper e2e. Users must trust the X company that they are really doing proper e2e. These apps should allow users to download a plugin and use that to produce the e2e. Then the user would be able to download an open sourced audited plugin that encrypts the messages before they hit the whatsapp/slack/telegram company servers. So for instance, if this was possible, everyone on a group would download and install the plugin that runs on top of whatsapp/slack/telegram and share an encryption key that only they know about. And do the same for conversations between 2 people. There must be some point of trust, however with the current situation, it is hard to trust e2e code no one is able to audit. Or just open the protocol so everyone can use and create their own clients and their own e2e mechanisms. Which is what IRC is.