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LexisNexis Breached by 'FulcrumSec,' Global Coalition Dismantles Tycoon 2FA Phishing Empire, and Critical Cisco RCE Patched

LexisNexis Breached by 'FulcrumSec,' Global Coalition Dismantles Tycoon 2FA Phishing Empire, and Critical Cisco RCE Patched

March 5, 2026
6 articles (4 new, 2 updated)
18 min read

Summary

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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