Microsoft Cybersecurity Architect (SC-100)Evaluate Governance Risk Compliance (GRC) technical strategies and security operations strategiesMedium

A large e-commerce company processes millions of customer transactions daily. The cybersecurity architect needs to implement a robust fraud detection system that also adheres to PCI DSS requirements for protecting cardholder data. Which security operations strategy is most effective for real-time fraud prevention while ensuring compliance?

  1. AOutsourcing all transaction processing and fraud detection to a third-party payment processor without internal monitoring.
  2. BReviewing transaction logs daily for suspicious patterns using manual analysis.
  3. CImplementing strong encryption for all cardholder data at rest and in transit, without a dedicated fraud detection system.
  4. DDeploying an AI/ML-driven fraud detection system integrated with payment gateways and a Security Information and Event Management (SIEM) solution, with automated alerts and incident response playbooks.
Show answer & explanation

Correct answer: D. Deploying an AI/ML-driven fraud detection system integrated with payment gateways and a Security Information and Event Management (SIEM) solution, with automated alerts and incident response playbooks.

An AI/ML-driven fraud detection system integrated with payment gateways and a SIEM provides real-time analysis of transaction data, enabling rapid identification and automated response to fraudulent activities, which is critical for both fraud prevention and PCI DSS compliance.

Why the other options are wrong

  • A. While third-party processors handle some aspects, the e-commerce company still bears responsibility for overall security and compliance; outsourcing entirely without internal monitoring is a risk for GRC.
  • B. Manual analysis is too slow and inefficient for millions of daily transactions, making it ineffective for real-time fraud prevention and compliance.
  • C. While encryption is crucial for PCI DSS, it's a data protection measure, not a fraud detection system; it doesn't identify or prevent fraudulent transactions themselves.

AI/ML in Fraud Detection

Utilizing Artificial Intelligence and Machine Learning models to analyze vast datasets and identify anomalous patterns indicative of fraudulent activities in real-time.

  • Enhances detection accuracy and speed compared to rule-based systems.
  • Adapts to new fraud techniques by learning from data.
  • Requires significant data for training and continuous model refinement.

Memory trick: AI Catches Fraud, SIEM Logs Compliance

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