IUSign vs Adobe Sign
for Multi-Tenant Data Isolation
Adobe Sign shares infrastructure. IUSign isolates every tenant with tenant_id filtering on every database query.
Why IUSign is Different
Multi-Tenant Data Isolation
ContextVar-based tenant isolation (current_tenant_id) applied to every query; per-tenant feature_flags JSON; API keys scoped to tenant_id.
Tenant isolation method
ContextVar + mandatory filters
API key scoping
tenant_id on every API key
Feature flags per tenant
feature_flags JSON per tenant
Usage tracking
Per-tenant usage JSON
Adobe Sign Approach
Shared database models create cross-tenant data leak risks; limited tenant-level feature controls.
- Adobe uses shared tables with org_id
- Bug in query could leak cross-tenant data
- No per-tenant feature gating
IUSign Approach
ContextVar-based tenant isolation (current_tenant_id) applied to every query.
- current_tenant_id ContextVar set per-request
- All queries automatically filter by tenant_id
- Feature flags control tenant capabilities
Result
Even a bug in application code cannot leak cross-tenant data.
Head-to-Head Comparison
Why IUSign is the preferred choice for enterprise scalability.
| Feature | IUSign | Adobe Sign |
|---|---|---|
| Tenant isolation method | ✅ ContextVar + mandatory filters | ⚠️ Query-level filters |
| API key scoping | ✅ tenant_id on every API key | ⚠️ Shared keys possible |
| Feature flags per tenant | ✅ feature_flags JSON per tenant | ❌ One-size-fits-all |
| Usage tracking | ✅ Per-tenant usage JSON | ⚠️ Global dashboard |
| Custom branding per tenant | ✅ Whitelabel with phishing_guard_phrase | ✅ Available |
Frequently Asked Questions
How do you prevent cross-tenant data leaks?
We use Python's ContextVar (current_tenant_id) set by middleware on every request. Every database query automatically includes WHERE tenant_id = current_tenant_id. Even if application code forgets to filter, the context ensures isolation.
Can we have different features enabled per tenant?
Yes. Each tenant has a feature_flags JSON column. You can enable/disable bulk send, public links, API access, and more on a per-tenant basis.
Ready to see the difference?
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