Threat Intelligence Brief
Curated summary with source attribution
Source: mdjonline.com
Threat Risk: Medium
Victim: Missouri State Treasurer’s Office
Incident: Unintentional exposure of student voucher data via an improperly configured spreadsheet on a public website.
Impact: Exposure of PII for students and parents, including names, email addresses, and scholarship amounts.
Attacker: None reported
Analysis: The leak occurred because a PivotTable was published without scrubbing the underlying data source. This allowed anyone to access PII, including names and emails, via a few clicks. The incident highlights the critical risk of relying on ‘hidden’ cells or tables for data redaction in public documents.
Recommendations: Perform rigorous data scrubbing and verification before publishing spreadsheets.; Use static PDFs or flattened images for public reports instead of live workbooks.; Implement a secondary security review process for all public-facing data releases.
Source: mdjonline.com
Editorial note: this post summarizes third-party reporting and links to the original source.
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