New Whitepaper Details Latest TSA Security Directive 2021-02C, With Guidance On How to Adapt

## Executive Summary: This Dragos brief explains the TSA's Pipeline-2021-02C security directive issued following the Colonial Pipeline ransomware event, highlights its alignment with OT standards (NIST CSF, API 1164, ISA/IEC 62443), reviews changes from Pipeline-2021-02B, and offers actionable recommendations for pipeline owners and operators to achieve compliance and improve resilience.