SendShield

Protecting users from risky crypto wallet addresses before funds are sent.

SendShield

SendShield is a Chrome extension designed to help users identify potentially risky cryptocurrency wallet addresses before sending funds.

Overview

Crypto transactions are irreversible. SendShield provides an additional safety layer by detecting wallet addresses that appear in a maintained threat database and displaying warning messages before a transaction is completed.

Features

• Chrome Extension
• Wallet Address Detection
• Scam Wallet Alerts
• Sanctioned Wallet Alerts
• High-Risk Wallet Alerts
• Warning Popups on Supported Pages
• External JSON-Based Threat Database (wallets.json)

Testing SendShield

SendShield currently uses a demonstration threat database for testing and validation purposes.

Test Wallet Addresses

🚫 Sanctioned Wallet

0x72a5843cc08275c8171e582972aa4fda8c397b2a

Expected Result:

• Displays a BLOCKED warning
• Indicates the wallet appears on sanctions lists

🔴 Scam Wallet

0x0000000000000000000000000000000000000001

Expected Result:

• Displays a SCAM WARNING
• Indicates the wallet has been reported for fraud

⚠ High-Risk Wallet

0x9999999999999999999999999999999999999999

Expected Result:

• Displays a HIGH RISK warning
• Indicates the wallet has been linked to phishing activity

How to Test

1. Install SendShield in Chrome.
2. Open a supported cryptocurrency withdrawal or wallet address input page.
3. Paste one of the test wallet addresses above into the address field.
4. Verify that SendShield displays the appropriate security warning.

Note

The current version uses a demonstration threat database to validate wallet detection and warning workflows. Future versions will integrate additional intelligence sources, sanctions data, community reports, and external threat intelligence feeds.

Current Version

SendShield v1.0

Current capabilities:

• Detects wallet addresses entered on supported websites
• Compares addresses against a threat database
• Displays security warnings for flagged wallets
• Loads wallet intelligence from an external JSON file
• Tested on cryptocurrency withdrawal workflows

Technical Architecture

SendShield currently uses:

• Manifest V3 Chrome Extension
• Content Scripts
• Dynamic JSON Database Loading
• Browser-Based Wallet Detection

No external APIs or blockchain intelligence providers are currently integrated.

Roadmap

Version 1.1

• GitHub-hosted threat database
• Easier threat intelligence updates
• Expanded threat database coverage

Version 2.0

• External API integrations
• Blockchain intelligence integrations
• Community information integrations
• Sanctions data integrations
• Social media and security alert monitoring
• Wallet labeling and categorization
• Exchange wallet identification

Version 3.0

• Multi-source threat intelligence
• Advanced wallet analysis
• Behavior-based risk detection
• Risk assessment engine
• Cross-source intelligence correlation
• Real-time threat detection capabilities

Project Status

SendShield is currently an MVP (Minimum Viable Product) focused on validating wallet risk detection workflows and browser-based transaction safety warnings.

Mission

Help crypto users identify potentially risky wallet addresses before funds are sent.