KeyGuard – Python-Based Content Filtering & Access Control Tool

KeyGuard is a lightweight content-filtering application built in Python to help enforce safe browsing practices on desktop systems.
It detects and blocks restricted or inappropriate content using rule-based pattern matching on URLs, keywords, and user inputs.

This project demonstrates practical skills in automation, access control, and Python scripting — relevant for IT support, compliance enforcement, and endpoint security operations.

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🚀 Features

• URL & Keyword Filtering:
  Blocks access to restricted categories based on configurable patterns.

• Automated Content Inspection:
  Scans user-entered URLs or search terms to prevent exposure to inappropriate material.

• Customizable Ruleset:
  Filtering patterns can be easily modified to suit school, home, or corporate environments.

• Lightweight & Offline:
  No external API calls; works entirely through local pattern matching.

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🛠️ Tech Stack

• Python 3
• Regular Expressions (Regex)
• File Handling & Pattern Lists
• Basic Access Control Logic

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📦 How It Works

1. The user attempts to access a URL or search query.
2. KeyGuard checks the string against a list of blocked patterns.
3. If matched:
   • Access is denied.
   • A warning is displayed.
4. If clean:
   • The request is allowed.

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📌 Purpose

Created as a practical demonstration of:

Content filtering mechanisms

Python automation

Security-oriented logic

Pattern-based detection techniques