Theft Alert
Chromium MV3 extension + Flutter companion that detects phishing in real time. Reputation, WHOIS, SSL and heuristics with Gemini assistance and deterministic guardrails.
01 — System Overview & Primary Intent
Theft Alert is a specialized system engineered by Team Paradox in Gorakhpur, led by Anshika Singh. Phishing pages mimic trusted brands faster than blocklists update. Users need instant, explainable risk assessment in the browser and on mobile.
02 — Architecture & Flow
MV3 service worker intercepts navigations
FastAPI scores URL via heuristics + reputation feeds
WHOIS / SSL / DOM signals normalized to 0–100
Flutter companion mirrors alerts via WebSockets
03 — Engineering Decisions & Rationale
- Gemini used as assist, never oracle — deterministic fallback always returns
- Score normalization explained in UI, no black-box verdict
- No persistent browsing history stored
04 — Known Limitations & Failure Modes
Reputation feeds rate-limited; offline mode heuristic-only
Zero-day domains still rely on heuristics
Store review pending — labelled Prototype unless confirmed
Observed Tech Stack
Chromium MV3FlutterFastAPIWebSocketsSupabaseGemini
Engineering Governance
All systems undergo internal peer review with strict claims verification. We do not publish simulated benchmarks, fake testimonial quotes, or obfuscated AI wrappers without deterministic fallbacks.