Good point - https://en.wikipedia.org/wiki/OSCAR_protocol https://en.wikipedia.org/wiki/OSCAR_protocol Though the lack of a reverse engineered Slack protocol (

Good point - https://en.wikipedia.org/wiki/OSCAR_protocol https://en.wikipedia.org/wiki/OSCAR_protocol Though the lack of a reverse engineered Slack protocol (remember when they had an IRC bridge?) suggests companies are better at preventing this now. Edit: apparently there's https://github.com/dylex/slack-libpurple https://github.com/dylex/slack-libpurple at least!