> Presumably he used the same process, but substituting ZenDesk for Slack. Or else he used a different method that he doesn't describe. He does describe the pr

> Presumably he used the same process, but substituting ZenDesk for Slack. Or else he used a different method that he doesn't describe. He does describe the process. > How does signing up for Zendesk using feedback@slack.com give him access to the target company's Zendesk instance? Because like the author said "any one could sign up with any e-mail address and effectively read any support tickets created by that e-mail address."