Slack’s annual transparency report

Covering May 1, 2015 to April 29, 2016

Our goal for Slack’s annual transparency report is to be clear and forthcoming about our practices and approach to user privacy and security. Transparency is something we take seriously at Slack because it is fundamental to accountability, and a hallmark of our own product.

Last May, we shared our first transparency report, when the company was just over a year old. Today we are releasing our second annual report.

At this time last year, we had not received any governmental or other legal requests for user data, nor had we received any content take-down requests. In the year since, we’ve greatly increased our total number of users on Slack—however, the number of requests for data remains low.

In releasing this report, we want to reiterate our position of opposing government-mandated “backdoors,” especially any government demands for access to user data that would compromise our users’ security.

We remain committed to the privacy and security of our teams and users.

About Slack

Slack has transformed business communication. It's the leading channel-based messaging platform, used by millions to align their teams, unify their systems, and drive their businesses forward. Only Slack offers a secure, enterprise-grade environment that can scale with the largest companies in the world. It is a new layer of the business technology stack where people can work together more effectively, connect all their other software tools and services, and find the information they need to do their best work. Slack is where work happens.