Updated Prohibited Technologies Domains

In accordance with Governor Greg Abbott’s directive to block access to prohibited technologies and their affiliated companies from state networks, the DIR Cybersecurity Operations team researched the prohibited technologies to identify their internet assets and compiled a list of IP addresses, IP CIDRs, and domain names that should be blocked. The resulting list included 96,251 hostnames from 399 domains.

To comply with the governor's directive, we have implemented blocks through Cisco Umbrella on the 399 domains provided by DIR. For transparency, the blocked domains are available for review at https://www.cyber.tamus.edu/restricted/resources/prohibited-technologies-domains.csv.

Authorized recipients interested in the original list of IPs and hostnames may download it from the Texas ISAO portal.