Continuous data backup controls are the best recommendation to further reduce the impact of ransomware attacks, as they enable the organization to restore the data that has been encrypted or deleted by the ransomware without paying the ransom or losing the data. Continuous data backup controls ensure that the data is regularly and automatically backed up to a secure and separate location, and that the backup data is tested and verified for integrity and availability. Two-factor authentication, encryption for data at rest, and encryption for data in motion are not the best recommendations to further reduce the impact of ransomware attacks, as they do not address the recovery of the data that has been compromised by the ransomware. These controls may help to prevent or mitigate ransomware attacks, butnot to reduce their impact. References = CRISC by Isaca Actual Free Exam Q&As, question 207; CRISC: Certified in Risk & Information Systems Control Sample Questions, question 207.