# OSA

> Offline Security Auditor

## Overview
OSA (Offline Security Auditor) is an air-gapped security analytics engine compiled as a single Go binary. It performs log ingestion and statistical anomaly detection without any runtime dependencies, making it ideal for isolated secure zones. It supports real-time streaming and historical batch analysis. Detection engines include Z-Score analysis for statistical outliers and Markov Chain models for behavioral sequential deviations. It reduced false positives by 38% in tests compared to baseline methods.

- [Official Domain](https://revealr.rounakneema.in)
- [Author: Rounak Neema](https://rounakneema.in)
- [Source Repository](https://github.com/Rounakneema)

## Architecture & Features
Single-binary offline security auditor with built-in statistical detection engines (Z-Score & Markov Chains) — no runtime dependencies required.

### Key Capabilities
- **Core Innovation**: Zero-dependency single binary architecture — runs anywhere Go compiles to (<200ms latency).
- **Detection Engines**: Statistical anomaly detection using Z-Score, Probability Matrices, and Markov Chains.
- **Log Pipeline**: Dual-mode log ingestion pipeline supporting historical backfill and real-time monitoring across 5 sources.
- **Target Use Case**: High-security isolated air-gapped environments where cloud SIEMs are inaccessible.

### Technologies Used
Go, Z-Score, Markov Chains, Probability Matrices, Log Ingestion

### System Metrics
- **Binary Deps**: 0
- **Latency**: <200ms
- **Detection**: 3 Engines
- **Deploy**: Air-Gapped

## Author & Related Projects
- [Author: Rounak Neema](https://rounakneema.in)
- [GitHub Profile](https://github.com/rounakneema)
- [LinkedIn Profile](https://linkedin.com/in/Rnks23)

### Also By Rounak Neema
- [SortMail - AI Email Layer](https://sortmail.rounakneema.in)
- [PipelineForge - DevSecOps](https://pipelineforge.rounakneema.in)
- [MetroMind - Document AI](https://metromind.rounakneema.in)
- [AXIOM OS - Local AI](https://axiom-os.rounakneema.in)
- [OSA - Security Analytics](https://osa.rounakneema.in)