(TLP:CLEAR) CISA Shares Internet Exposure Reduction Guidance

Summary: Many organizations unknowingly leave common vulnerabilities and weaknesses exposed to the internet, making them easy targets for exploitation. Misconfigured systems, default credentials, and outdated software are often publicly accessible through internet-based search and discovery platforms. By following CISA’s Internet Exposure Reduction Guidance, organizations can proactively identify and remove these exposures, reducing their online footprint and strengthening their cybersecurity posture.

Analyst Note: Unsecured internet-facing systems present a clear and immediate threat surface that attackers can exploit, often with minimal effort. Proactively managing and reducing these exposures should be a continuous priority for water utilities, especially as threats continue to evolve rapidly. The “Steps to Reduce Internet Exposure” outlined by CISA can be a powerful way to strengthen your utility’s security posture. This guidance can be a helpful supplement to Fundamental 2 “Minimize Control System Exposure” from WaterISAC’s 12 Fundamentals for Water and Wastewater Systems.

Original Source: https://www.cisa.gov/resources-tools/resources/exposure-reduction

Mitigation Recommendations:

• Fundamental 2: Minimize Control System Exposure | WaterISAC’s 12 Fundamentals for Water and Wastewater Systems

Related WaterISAC PIRs: 6, 8, 12