Best practices for key management include all of the following, except:

Best practices for key management focus on ensuring the confidentiality, integrity, and availability of the cryptographic keys used to protect sensitive data. While multifactor authentication is an excellent security practice in general, it specifically pertains to user authentication rather than key management processes.

Maintaining key security is crucial as it involves safeguarding the keys against unauthorized access and ensuring that they are stored securely. Passing keys out of band refers to the practice of transmitting keys through a secure method that is separate from the data they protect, reducing the risk of interception. Having key recovery processes ensures that lost keys can be recovered safely without compromising the security of the data they protect.

While multifactor authentication reinforces overall security, it does not directly pertain to the specific practices and methods involved in managing cryptographic keys effectively. Therefore, it is not considered a best practice within the realm of key management.