Howard Enos a92d2d3f2c report: Cascades Tucson phishing sweep - deleted 14 phish across 7 users
Triggered by John Trozzi reporting a spoof email. Single-user check
confirmed him clean (reported, not compromised). Tenant-wide sweep
found a sustained ~1 month campaign from 4 external IPs (UA/US/DE/AT
- deltahost + ColoCrossing) plus a compromised-M365-tenant relay
vector. Deleted 14 messages (Groups A+B) per Mike's explicit
authorization. Preserved legitimate HR thread (HRPYDBRUN xlsx) and
user outbound forwards as evidence.

Recommendations in report: DMARC p=quarantine/reject for
cascadestucson.com (biggest leverage), TABL IP blocks, zoom.nl
URL block, Defender impersonation protection.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-20 09:39:22 -07:00
Description
Custom Claude Code behaviors and workflows - Multi-mode operation system
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