(a) This section applies only to a computer network used by:
(1) a state agency; or
(2) an entity other than a state agency receiving network security services from the Texas Cyber Command under Section 2059.058.
(b) The governor may order the Department of Information Resources to disconnect a computer network from the Internet in the event of a substantial external threat to the computer network.
(c) The authority granted under this section is limited to Internet connectivity services provided exclusively to an entity described by Subsection (a).