I'm laughing at the "security" section in the document you linked.
Security
19. Several commenters raise issues related to AFC system security, standard power device
configuration, and the connection between the standard power devices and the AFC systems. AT&T
claims that no applicant has addressed the section 15.407(k)(8)(v)55 requirement that standard-power
devices incorporate security measures to prevent the devices from accessing AFC systems not approved
by the FCC.56 AT&T also points out that this requirement is not addressed in WFA’s standard-power
device test plan.57 According to AT&T, if AFC systems can be spoofed, the microwave links will have
no protection.58 AT&T also complains that while WFA’s “Device Interface Specification” provides that
AFC systems will be authenticated using a public key certificate framework, the specification does not
explain who can issue or revoke certificates, the security of the process for obtaining certificates, how a
certificate is determined to reflect a valid AFC system authorization, or why the specification lists this
requirement as untestable.5