Which of the following is considered a best practice for preserving the confidentiality of a...

TheFraud Examiners Manualstresses confidentiality:

“To preserve confidentiality, investigators should avoid transmitting confidential information by email or other electronic means whenever possible, as these are susceptible to interception or unauthorized access.”

Suspending employees or blanket bans on discussion are not best practices. Confidentiality is preserved primarily by secure communication and controlled access to information.