[Reference: NIST SP 800-94, Guide to Intrusion Detection and Prevention Systems (IDPS)., Real-Time Threat Detection:, These systems provide real-time protection by continuously analyzing network traffic and system behaviors, allowing for immediate detection and response to potential threats., Reference: "Intrusion Detection and Prevention Systems" by Carl Endorf., Compliance with Regulations:, Anomaly-based IDS assist in achieving compliance with global financial regulations by providing detailed logs and reports of detected anomalies, which are essential for regulatory audits and incident response., Reference: ISO/IEC 27002:2013, Information technology — Security techniques — Code of practice for information security controls., Minimal Performance Impact:, Unlike some other security controls, anomaly-based IDS are designed to operate with minimal impact on system performance, ensuring that the transactional data flow remains efficient while being protected., Reference: SANS Institute's "Network Intrusion Detection and Prevention Systems (IDPS) Basics.", Given FinTech Corp's need for real-time protection and compliance without impeding performance, anomaly-based IDS is the most suitable control., , ]