In my last article, I discussed the rising role of edge computing in bridging OT and IT across electric utilities—enabling real-time decision-making, improved reliability, and smarter grid operations. The implication for leadership is simple: edge security must be treated as a strategic risk management issue, not a technical afterthought. OT–IT Convergence Has Changed the Security EquationIn my previous article, I highlighted how edge computing accelerates OT–IT convergence and unlocks new operational insights. Device Identity and Lifecycle Security: The Hidden ComplexityOne of the least visible—but most consequential—challenges in edge security is device identity over long asset lifecycles. Key questions include:• Do we have a verifiable identity for every edge device deployed today?