Which of the following would MOST effectively reduce risk associated with an increase of online...

The most effective way to reduce risk associated with an increase of online transactions on a retailer website is to implement website activity monitoring. Website activity monitoring can help to detect and prevent fraudulent transactions, unauthorized access, data breaches, and other cyber threats that may compromise the security and integrity of the website and its data. Scalable infrastructure, a hot backup site, and transaction limits are other possible ways to reduce risk, but they are not as effective as website activity monitoring. References = ISACA Certified in Risk and Information Systems Control (CRISC) Certification Exam Question and Answers, question 7; CRISC Review Manual, 6th Edition, page 202.