Exam Integration-Architect Topic 5 Question 11 Discussion

Implementing Shield Platform Encryption is a significant architectural change that requires careful planning before activation. The architect's first priority must be to Review Shield Platform Encryption configurations and understand the platform's functional limitations.
Encryption at rest affects how data interacts with other platform features. For example, encrypting a field can impact the ability to use that field in SOQL WHERE clauses, report filters, list views, or as a unique/external ID. Before encrypting Social Security Numbers, the architect must audit all existing integrations, Apex code, and reports that reference that field to ensure they will still function correctly.
Option A is incorrect because unnecessarily encrypting all data can negatively impact system performance and break standard functionality. Encryption should be applied selectively to sensitive fields based on a clear data classification policy. Option B is factually wrong; Shield is a data protection tool, not an authentication or authorization mechanism like OAuth or SSO. By reviewing the configurations first, the architect can identify potential "blockers"-such as a field being used in a formula or a criteria-based sharing rule-and address them before the encryption keys are generated and applied.