What method should be avoided when communicating key numbers?

The use of email for communicating key numbers should be avoided due to concerns around security and confidentiality. Emails can be intercepted or accessed by unauthorized individuals, posing a risk to sensitive information. This vulnerability makes it an unreliable method for conveying critical data that could impact jail security or operations.

In contrast, written notes can be securely handled and stored, allowing for controlled access. In-person conversations ensure immediate clarification and reduce the risk of information miscommunication. Using the radio often provides a secure and quick method of communication, especially in urgent situations. Each of these alternatives offers a more secure and reliable approach to sharing important information compared to email.