Meet Matt Slack: Michigan techie who is @slack on Twitter got an invite to Slack’s public debut by Kurt Schlosser on June 25, 2019June 25, 2019 at 9:06 am Matt Slack has been on Twitter for 13 years with the handle @slack. Slack, the chat-based collaboration app, has been on Twitter for six years with the handle @SlackHQ. Last… Read More