Can anyone speak to the security models of say MS Teams and Slack? Personally, I really like MS Teams, and Slack is probably my second choice. I'm working wit

Can anyone speak to the security models of say MS Teams and Slack? Personally, I really like MS Teams, and Slack is probably my second choice. I'm working with teams that are using both of these tools nearly daily. I was on a Zoom meeting earlier today, and imho it was horrible by comparison... constantly cutting out and blurry. I don't get the popularity.