338 Million Attack Simulations Reveal Enterprise Defense Gaps: Perimeter Holds, Inside Weak
What Happened — Picus Security’s Blue Report 2026 analyzed 338 M autonomous attack simulations run in live production environments. Overall prevention rose to 69 % at the network edge, but once an attacker breached the perimeter only 37 % of subsequent actions were blocked. Reconnaissance and credential‑dumping were stopped in ≈10‑22 % of cases, while lateral movement and privilege escalation saw 85‑90 % blocking rates.
Why It Matters for Compliance & Audit Readiness
- The disparity between perimeter and internal controls highlights a control‑mapping gap that SOC 2 auditors will probe under the CC6 – System Operations and CC7 – Change Management criteria.
- Continuous evidence of detection effectiveness (e.g., logs of blocked internal actions) is essential to demonstrate that “the system is protected against unauthorized access” throughout its lifecycle.
- Verisq’s Control Mapping capability can automatically correlate simulation results to SOC 2 controls, providing real‑time audit evidence of internal detection coverage.
Who Is Affected
- Large‑scale enterprises across all verticals that rely on layered security stacks (e.g., finance, SaaS, healthcare, manufacturing).
Recommended Actions
- Map internal detection controls (EDR, UEBA, privileged‑access monitoring) to SOC 2 CC6/CC7 requirements and identify coverage gaps.
- Deploy continuous‑monitoring tooling that records and validates internal block events as audit evidence.
- Incorporate autonomous red‑team simulations into your regular compliance testing cadence.
Source: Help Net Security – Blue Report 2026
Technical Notes – The study used autonomous penetration testing to emulate attacker behavior after initial compromise, measuring block rates for reconnaissance, credential dumping, lateral movement, and privilege escalation. No specific CVEs were involved. Source: same as above