What are the implications of using the sleep or hibernate power management options?
BitLocker on operating system drives in its basic configuration (with a TPM but without advanced authentication) provides additional security for the hibernate mode. However, BitLocker provides greater security when it is configured to use an advanced authentication mode (TPM+PIN, TPM+USB, or TPM+PIN+USB) with the hibernate mode. This method is more secure because returning from hibernation requires BitLocker authentication. As a best practice, we recommend that sleep mode be disabled and that you use TPM+PIN for the authentication method.