SaaS abuse unfortunately isn’t new. On our SaaS app, we had to introduce a Captcha when adding users to an account. Spammers would write scripts to continually

SaaS abuse unfortunately isn’t new. On our SaaS app, we had to introduce a Captcha when adding users to an account. Spammers would write scripts to continually add, send welcome emails, and then delete users (getting around the 5 free user limit). They would place their spam in the account name, and the users first and last name. Before we caught it, they were sending thousands of emails a minute via our paid-for upstream transactional email provider. If it’s free, it’ll get abused eventually.