Is Slack a security risk?

Related questions

1. How does Slack make money?
2. Where do slack downloads go?
3. Why should I use slack?
4. How much does Slack cost per month?
5. What is a channel on slack?
6. Does slack have an API?
7. Do I need to pay for slack?
8. What's the point of slack?
9. How secure is Whatsapp?
10. Can others see private channels on slack?

Tags

1. #businesses
2. #large
3. #collaboration
4. #based
5. #software
6. #cloud
7. #those
8. #people
9. #using
10. #conversations
11. #risks
12. #asking
13. #small
14. #slack
15. #potential
16. #platform
17. #security