Slack Accuses Microsoft of Illegally Crushing Competition – The New York Times

July 28, 2020

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Slack said on Wednesday that it had filed a complaint against Microsoft with the European Commission, accusing the tech giant of using its market power to try to crush the upstart rival.

“Slack threatens Microsoft’s hold on business email, the cornerstone of Office, which means Slack threatens Microsoft’s lock on enterprise software,” Jonathan Prince, vice president of communications and policy at Slack, said in a statement.
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https://www.nytimes.com/2020/07/22/technology/slack-microsoft-antitrust.html