The burn-out week. Ransomware operators collapsed 94% in seven days (36 → 2) as the new-affiliate cohort completed its deployment phase. Two Mozi-class botnet operators produced 1,169 indicators in a parallel infrastructure build event. 19 malware families produced the largest Malware-tier reading of the trailing 8 weeks. APT concurrency ticked up (4 → 5) — early recovery signal. 4,812 attributed IOCs. 51 named adversaries. 19 distinct MITRE TTPs. Full CISO briefing with 4 Sigma rules, top 60 IOCs, risk-register wording.
The pivot week. The three-week persistent C2 operator surfaced zero attributable indicators. The ransomware surge we forecast for Weeks 40-42 arrived one week early at 37 concurrent operators (208% jump). APT concurrency collapsed to 4 clusters, confirming cycle-end. Malware distribution surface exploded with three concentrated Loader/RAT/Trojan clusters. Full CISO briefing with 4 Sigma rules, top 60 IOCs, risk-register wording.
Coining Hunt-Debt. 5-level TaHiTI Maturity Model (L1 Reactive → L5 Optimized). 30-question CISO Self-Assessment scoring your program out of 90. 90-Day Operator Playbook to move from Level 1/2 to Level 3+. Anti-patterns per level. Sept 2026 threat-surface case study. Risk-register wording ready for ERM paste. Complete Part 4 of the TaHiTI series.