Technical and Security Self-Audit Report (2026.02)

Diligence Document - M&A Confidential

This document presents the security evidence and technical controls implemented in ABS Core v10.1.5.

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1. Isolation Model (Multi-tenant vs. Single-tenant)

Status: Enterprise Isolated (Single-tenant per instance).

• Decision: To maximize data sovereignty, each corporate client (e.g., NuvexSell) operates on its own isolated Worker/D1.
• Mitigation: This eliminates the risk of "Cross-tenant Data Leakage", one of the biggest liabilities in common SaaS.

2. Immutable Ledger Implementation

Proof of Work:

• The Ledger now uses a Hash Chaining mechanism where each block (DecisionRecord) contains the signed hash of the previous block.
• Auditability: We provide the verify-ledger.ts script that allows any auditor to reconstruct and validate the integrity of all AI decisions without relying on the central server.

3. Credential Security (Secret Vault)

• Lock-in Mitigation: The system supports integration with external Secret Managers (AWS Secrets Manager, Cloudflare Secrets, etc.).
• JIT Injections: Secrets are never persisted in logs or long-term memory; they are injected into the outgoing request and wiped in the response.

4. Incident History

• Status: Zero (0) critical PII leakage incidents since the stabilization of v10.1.5.
• Detection: The built-in telemetry system (metrics.ts) issues "Policy Violation" alerts in real-time, allowing for immediate mitigation.

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Conclusion: ABS Core was designed to be audited. We do not operate a "black box". Every technical claim has a counterpart in validated code.