Skip to content
Arnav Sahai
Back to work

Risk & Cybersecurity

Live demo

Cyber Narrative Radar

Full-stack early-warning system that turns public cyber discourse into explainable alerts, organization drilldowns, and narrative clusters for analyst workflows.

Role: Sole builder (end-to-end product)

Interactive demo

Embedded preview of the working product. Use full-screen mode for the complete walkthrough.

cyber-narrative-radar-web.onrender.com/Open

Context

Security and risk teams need early signals from public chatter about ransomware, phishing, zero-days, and supply-chain issues- but black-box AI summaries without evidence are hard to trust in analyst settings.

Method / approach

Built a local-first MVP that ingests public/synthetic cyber text (RSS, Reddit, seed data), normalizes records, maps content to organizations and narrative categories, detects unusual activity with deterministic scoring and clustering, and presents evidence-backed alerts in a React dashboard. The deployed web app is available for live walkthroughs of alerts, organization drilldowns, and narrative clusters.

Tools and technologies

  • Python
  • FastAPI
  • SQLAlchemy
  • PostgreSQL
  • Docker
  • React
  • TypeScript
  • TF-IDF / KMeans clustering

Key deliverables

  • Live deployed analyst dashboard
  • Relational schema and ETL pipeline
  • Explainable alert scoring with evidence posts
  • Organization and narrative explorer views
  • Deployment documentation (Docker / Render / Railway path)

Results / findings

  • Shipped a portfolio-grade, documented platform demonstrating OSINT-style cyber narrative intelligence with explainable methods rather than opaque LLM-only detection.
  • Public demo deployed at cyber-narrative-radar-web.onrender.com for recruiter and hiring-manager walkthroughs.

Evidence & links