Stewart Butterfield says Microsoft sees Slack as existential threat

In a wide ranging interview with The Wall Street Journal’s global technology editor Jason Dean yesterday, Slack CEO and co-founder Stewart Butterfield had some strong words regarding Microsoft, saying the software giant saw his company as an existential threat.
The interview took place at the WSJ Tech Live event. When Butterfield was asked about a chart Microsoft released in July during the Slack quiet period, which showed Microsoft Teams had 13 million daily active users compared to 12 mi