From the Document: "Cyber threat intelligence is a critical component to the development of a cyber security risk-management strategy. This intelligence assists with identifying and assessing threats and offers mitigation techniques toward managing cyber risks. The Federal government has long recognized the importance of public-private information sharing to improve an individual company's cyber program and collectively the nation's cyber posture. [...] Small telecommunications operators have limited financial, technical, and operational resources. As a result, many small operators do not actively participate in cyber threat information sharing programs and may not be receiving the necessary critical intelligence to inform and bolster their security efforts."
Cybersecurity and Infrastructure Security Agency: https://www.cisa.gov/