ApexAdvancedencryptionshieldsecurity
Handle encryption and Shield Platform Encryption in Apex
Real World Scenario
Encrypted fields break SOQL WHERE clauses in integration queries filtering on email.
Expected Answer
• Deterministic encryption required for equality filters
• Probabilistic encryption prevents SOQL filter—redesign query approach
• Filter on alternate hashed token field for lookups
• Encryption-aware integration patterns documented
• Test with encrypted fields in scratch org with Shield
• Avoid logging decrypted values in debug logs in production
Follow-Up Questions & Answers
Click to expand — each follow-up includes a direct, interview-ready answer
Stay within limits by: Deterministic encryption required for equality filters. Bulkify everything — never query or DML in loops. Filter on alternate hashed token field for lookups. Encryption changes query architecture—design token fields before enabling Shield on filter columns. Optimize for scale and operational observability.
Architect Perspective
Encryption changes query architecture—design token fields before enabling Shield on filter columns.