SaaS Security Checklist
The apps that run your business also expand your attack surface. Here's how to keep your SaaS stack secure.
Book a 20-min deal readiness callInventory your SaaS stack
Know every app that touches company or customer data, including shadow IT.
Enforce SSO and MFA
Centralize authentication so access is consistent and revocable across tools.
Apply least-privilege access
Grant only the access each role needs, and review it on a schedule.
Configure secure defaults
Turn on encryption, audit logs, and session controls in every app that offers them.
Manage third-party risk
Review the security posture of each SaaS vendor before and during use.
Monitor for misconfiguration
Continuously check for public shares, weak settings, and configuration drift.
Control data flows
Know where customer data lives and how it moves between connected apps.
Automate offboarding
Revoke access the moment someone leaves, across every tool at once.
Log and alert
Centralize logs and alert on anomalous or privileged access.
Review continuously
SaaS changes fast. Make security review a recurring process, not a one-off.
What auditors actually ask for
- Can you list every SaaS app with access to customer data?
- Is SSO enforced, or do local passwords still exist?
- When did you last review access, and can you show the record?
- How quickly is access revoked at offboarding, and can you prove it?
- Are admin actions logged and reviewed?
Where teams most often trip up
- Shadow IT: apps procured on a card that never reach the inventory
- SSO enabled but local login left active as a fallback
- Access reviews performed but never documented
- Offboarding that revokes email but leaves SaaS access live
- OAuth tokens and integrations that outlive the person who created them
Realistic timeline
Initial inventory and lockdown typically 2-4 weeks; the review cadence is then ongoing.