Security and Privacy in Product and Program Design Questions
How to integrate security and privacy into product and program planning. Includes mapping data flows through systems, identifying where personally identifiable information is created and stored, applying privacy by design principles such as data minimization and lifecycle management, specifying compliance requirements like GDPR or industry specific regulations, and planning access controls and auditability. Also covers how security and privacy requirements constrain scope, timelines, resourcing, and cross functional collaboration and when to escalate to specialist teams.
HardTechnical
0 practiced
Design an implementation to detect potential PII in unstructured logs at scale. Describe a hybrid approach that combines high-precision regex rules and ML classifiers (e.g., NER), strategies for generating labeled data, confidence thresholds for quarantining logs, indexing for fast search, and a rollout plan to minimize false positives/negatives and performance impact.
HardSystem Design
0 practiced
Architect a multi-region service processing PII for 100 million users distributed across EU, US, and APAC. Address data partitioning and replication policies, cross-border transfer controls, region-specific key management, consent synchronization, subject-access and deletion APIs that respect regional laws, audit trail design, and disaster recovery. For each area explain trade-offs and how you'd prove compliance to auditors.
EasyBehavioral
0 practiced
Tell me about a time when you worked with product managers, legal, or security teams to implement a privacy requirement (for example, consent UI, data minimization, or deletion flows). Use the STAR method: describe the Situation, the Task you owned, the Actions you took (technical and communication), and the Results including measurable outcomes and lessons learned.
MediumSystem Design
0 practiced
Design a user profile service for 10 million users with a read SLA of 99.95% at 5k RPS. The service stores PII (name, email, address, phone). Describe storage choices (SQL vs NoSQL), encryption-at-rest, per-region key management, access control patterns for internal services, audit logging architecture, deletion/retention workflow, and approaches for data minimization. List components and justify trade-offs for scalability and compliance.
HardTechnical
0 practiced
Case: A cloud backup vendor experienced a breach exposing encrypted snapshots. The vendor claims snapshot data was encrypted and keys were not compromised. As a senior/staff engineer, propose immediate technical steps to validate the vendor's claim, containment and notification actions, long-term mitigations (e.g., client-side encryption, key ownership changes), and contract/operational changes you would recommend with the vendor.
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