Which of the following is NOT considered a best practice for key management?

The practice of ensuring multifactor authentication, while integral to overall security measures, does not directly relate to key management best practices. Key management focuses specifically on the processes and controls associated with creating, distributing, storing, and allowing access to encryption keys.

Maintaining key security is fundamental to protect keys from unauthorized access. Passing keys out of band refers to ensuring that keys are shared through secure channels rather than alongside sensitive data, which helps prevent interception. Having key recovery processes in place is crucial for ensuring that lost or damaged keys can be retrieved or replaced, thus ensuring continued access to encrypted data.

Multifactor authentication, in contrast, is primarily concerned with user authentication rather than the specific processes or safeguards that pertain to the management of encryption keys. It adds an additional layer of security for user access but does not specifically relate to how keys themselves are handled or protected within a key management framework.