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PURA finds Connecticut gas companies' breach response reasonable but flags security gaps
Summary
PURA found that Connecticut Natural Gas and Southern Connecticut Gas responded reasonably to a phishing-related data breach by an Avangrid employee but identified areas for improvement in cybersecurity practices and referred follow-up to its 2026 emergency response plan review docket.
The Public Utilities Regulatory Authority adopted staff findings on March 25, 2026, that Connecticut Natural Gas (CNG) and Southern Connecticut Gas (SCG) acted reasonably in their cybersecurity program and response after an Avangrid employee fell for a phishing email that exposed customer account and billing-status information.
Authority staff member Trevor Row summarized the investigation in docket 25-04-23, filed by the…
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