This document is a worksheet designed for US State and Local Government CIOs, focusing on the risks associated with dark data in archives. It outlines the vulnerabilities that arise from unclassified and unmanaged data, emphasizing that sensitive information can unexpectedly surface through AI tools or discovery processes, leading to compliance gaps and increased costs. The document details how traditional archives, built for information retention, have become blind spots for CIOs, as they often contain unreviewed and unclassified content. It explains that with the rise of AI and analytics, previously hidden data is now discoverable, which can pose significant risks. The worksheet includes questions to help assess the presence of dark data and encourages governance practices to mitigate risks. It also suggests methods for turning dark data into a governed asset, such as metadata enrichment and classification, to ensure sensitive information is managed effectively.