Why this topic matters
Cloud abuse rarely ends at one provider account. SSO, mail, storage, ticketing and external SaaS platforms often trust the same identity backbone. Once that backbone is weak, the environment becomes one large delegated graph.
Operator checks
- Model which SaaS platforms trust the primary IdP for login, provisioning or role claims.
- Watch for application consent that grants durable access outside the original provider console.
- Check federation relationships, legacy protocols and admin shortcuts that weaken tenant boundaries.
- Treat cloud identity and SaaS administration as one attack surface.
Reporting lens
Write findings in terms of trust crossed, scope enlarged and business or operational effect reached. That keeps the note useful whether you are validating a lab, an internal research target or a live customer environment.
Curated public references
- Microsoft Learn · App registrationsApplication objects, service principals and enterprise apps.
- Okta OAuth and OIDCDelegated identity concepts inside Okta-backed estates.
- SCIM RFC 7644Provisioning protocol and lifecycle semantics.