Feds Warn on Russian Actors Targeting Critical Infrastructure

**Executive Summary:** U.S. agencies (FBI, NSA, CISA) attribute persistent malicious cyber operations to Russian GRU Unit 29155, which has employed WhisperGate malware and conducted website defacements, infrastructure scanning, data exfiltration, and data leaking since 2020 against Ukrainian targets and NATO-related organizations across North America, Europe, Latin America and Central Asia; the advisory warns the group targets critical infrastructure sectors including government services, financial services, transportation, energy, and healthcare and recommends patching, network segmentation, and phishing-resistant MFA as mitigations.