CISA has released a new guide aimed at improving secure communication within operational technology (OT) environments, which are critical for infrastructure like energy and transportation. The guide stems from a year of customer-led research and addresses the common barriers that hinder the adoption of secure communication practices. Key challenges include high costs, complex procurement processes, latency issues, and difficulties with interoperability, particularly concerning legacy systems. CISA's Acting Director, Madhu Gottumukkala, emphasized the importance of collaboration among asset owners, operators, system integrators, and manufacturers to effectively implement these secure communication practices. The guide also highlights the risks associated with insecure communications, such as actor-in-the-middle attacks that can compromise system integrity. CISA's commitment to working with industry partners aims to create practical solutions that enhance security and trust in OT environments. The guidance not only outlines the reasons for the slow adoption of secure communication but also offers actionable recommendations for overcoming these obstacles. It encourages asset owners and integrators to prioritize secure communication when procuring new components, while OT manufacturers are urged to learn from the research to design products that minimize security friction and improve usability. This initiative builds on previous CISA resources and aims to foster a more secure infrastructure landscape.