Before: With sensitive patient data being at stake, ransomware attacks not only impact the reputations and finances of healthcare organization but also risk lives. After: With sensitive patient data being at stake, ransomware attacks not only affect the reputations and finances of health care organizations, but also risk lives. Notes: Impact is better used as a noun, rather than as a verb. Health care is two words according to m-w.com Organizations is in plural since we are talking about ransomware attacks across many units.