What is Tier 1 of the NIST Implementation Tiers characterized by?

Tier 1 of the NIST Implementation Tiers is characterized by ad hoc and inconsistent actions. This tier reflects an organization that is just beginning to establish a cybersecurity framework. At this level, there is typically a lack of formal processes or documented policies governing cybersecurity practices. Organizations operating at this tier may have limited awareness of risks and may respond to cybersecurity threats on an as-needed basis without comprehensive planning or consistency.

The focus at Tier 1 is on recognizing the need for cybersecurity, but the implementation of practices is often reactive rather than proactive. This means that while there may be some efforts to address cybersecurity issues, they are not yet systematic or well coordinated across the organization. As organizations progress to higher tiers, they develop more structured approaches, including formal documented policies and management-approved cybersecurity initiatives.