Many small SaaS platforms lack breach monitoring services. Users only discover their credentials were leaked after damage is done.
A lightweight service could crawl paste sites and forums for mentions of niche platforms, then notify subscribers if their domain appears.
SaaS companies would pay to offer this as a security value-add to their customers.
MVP: Manual scans for a handful of platforms with email alerts.
Risk: Larger players like HaveIBeenPwned could expand into this space.