Android and iOS

Feature flags for security controls

Designing client, server, framework and policy layers together.

Protection architecture1 min readEditorial methods

A flag that changes enforcement is more than an interface experiment. Authorized changes, visible versions and safe rollback belong in its design.

Evaluation approach

Define the authoritative source, version and expiry. A client-modifiable value must not independently weaken server trust decisions.

Application example

During a limited rollout, record which user group received each RASP policy.

Limits and considerations

A permanent disable switch added for testing can accidentally reach production.

The security configuration control plane

Track who changed enforcement, which users it affects and when it expires. A value freely selected by the client must not be the final authority.

Choose behavior for flag-service outages in advance. Keep observation and enforcement cohorts distinguishable. Rolling back a feature should not disable every related server control.

Checks and decisions

  • Restrict change permissions
  • Test defaults
  • Use expiring exceptions

Manage security flags as audited policy changes.

Sources

The primary references above provide the technical basis. Example workflows and evaluation suggestions are this publication’s explanations, not independent test results for a particular product.