# SaaS Security

## Future Requirements

When moving to SaaS:

Support:

- Multiple users.
- Subscription plans.
- Usage limits.

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# Tenant Isolation

Every resource belongs to:

User

or

Organisation.

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# Billing Security

Never trust client-side:

- Subscription status.
- Permissions.
- Limits.

Verify server-side.

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# Admin Features

Protect:

- User management.
- AI providers.
- System settings.

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# Principle

Prepare architecture without adding unnecessary complexity early.