This cybersecurity brief for March 5, 2026, covers a series of high-impact events. Data analytics giant LexisNexis confirmed a major cloud breach by the threat actor 'FulcrumSec,' exposing sensitive legal and government user data. In a significant win for law enforcement, an international coalition led by Europol and Microsoft dismantled the 'Tycoon 2FA' Phishing-as-a-Service platform. Meanwhile, critical vulnerabilities demand immediate attention: Cisco patched a CVSS 10.0 RCE flaw in its firewall management software that was exploited as a zero-day, and CISA added a separate, actively exploited VMware Aria Operations bug to its KEV catalog. The day also saw massive data breach disclosures from CarGurus (12.4M users) and European retailer ManoMano (38M users).
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