feat: Add three new cybersecurity tools and update index

This commit introduces three new command-line cybersecurity tools to the repository, in response to the user's request to integrate tools for account access, data access, and hacking.

1.  **Account Pwned Checker:**
    - A tool to check if an email address has been part of a known data breach using the 'Have I Been Pwned?' API.
    - Includes the main script, a checker module, a requirements file, and a detailed README.

2.  **Sensitive Data Scanner:**
    - A tool to recursively scan a local directory for sensitive data patterns like API keys, private keys, and credit card numbers.
    - Includes the main script, a scanner module with regex patterns, and a README.

3.  **Port Scanner:**
    - A multi-threaded TCP port scanner to discover open ports on a target host.
    - Includes the main script, a scanner module, and a README with a legal disclaimer.

Additionally, the root `index.html` file has been overwritten with a new, clean landing page that serves as a central directory for all tools in the repository, including the newly added ones. This replaces the previous default React template.

Author: google-labs-jules[bot]

README_port_scanner.md

@@ -0,0 +1,84 @@
+# Port Scanner CLI
+
+This is a simple, multi-threaded TCP port scanner written in Python. It is designed to find open ports on a target host.
+
+## Features
+
+*   Scans a target host (IP address or hostname).
+*   Supports scanning a range of ports, a list of ports, or a single port.
+*   Uses multiple threads for faster scanning.
+*   Clear and simple output of open ports.
+
+## Prerequisites
+
+*   Python 3.6+
+*   No external libraries are required.
+
+## How to Run
+
+1.  **Navigate to the project directory.**
+    Ensure you have the `port_scanner_main.py` script and the `port_scanner` directory.
+
+2.  **Run the application from your terminal.**
+    Provide the target host and optionally a port range.
+
+    ```bash
+    python port_scanner_main.py <target_host> [options]
+    ```
+
+### Command-Line Options
+
+*   `host`: (Required) The target host to scan (e.g., `127.0.0.1`, `example.com`).
+*   `-p, --ports`: (Optional) The port range to scan. Defaults to `1-1024`.
+    *   Formats:
+        *   Range: `1-65535`
+        *   Comma-separated list: `80,443,8080`
+        *   Single port: `22`
+*   `-t, --threads`: (Optional) The number of threads to use for scanning. Defaults to `20`.
+
+### Example Usage
+
+**Scan the default port range (1-1024) on localhost:**
+```bash
+python port_scanner_main.py 127.0.0.1
+```
+
+**Scan a specific range of ports on a remote host:**
+```bash
+python port_scanner_main.py example.com -p 1-200
+```
+
+**Scan specific ports:**
+```bash
+python port_scanner_main.py example.com --ports 22,80,443
+```
+
+**Increase the number of threads for a faster scan:**
+```bash
+python port_scanner_main.py scanme.nmap.org -t 50
+```
+
+**Example Output:**
+```
+Scanning host scanme.nmap.org for open ports...
+
+--- Open Ports Found! ---
+  [+] Port 22 is open
+  [+] Port 80 is open
+```
+
+## Disclaimer
+
+*   **LEGALITY**: Unauthorized port scanning of networks is illegal in many countries. This tool is intended for educational purposes and for use on networks where you have explicit permission to conduct scanning. The user assumes all liability for any misuse of this tool.
+*   **ACCURACY**: The accuracy of the scan can be affected by firewalls, intrusion detection systems (IDS), and network latency. A port that is reported as closed may be filtered or blocked.
+*   **PERFORMANCE**: Scanning a large range of ports can take a significant amount of time, even with multiple threads.
+
+## File Structure
+```
+.
+├── port_scanner_main.py            # Main CLI application script
+├── port_scanner/
+│   ├── __init__.py               # Makes port_scanner a Python package
+│   └── scanner.py                # Core logic for port scanning
+└── README_port_scanner.md          # This documentation file
+```

README_pwned_checker.md

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+# Account Pwned Checker CLI
+
+This tool checks if an email account has been compromised in a known data breach by using the 'Have I Been Pwned?' (HIBP) API.
+
+## Features
+
+*   Checks a single email address against the HIBP database.
+*   Lists the details of each breach found for the account.
+*   Provides clear output for both compromised and non-compromised accounts.
+
+## Prerequisites
+
+*   Python 3.6+
+*   `requests` library
+*   A 'Have I Been Pwned?' API Key
+
+## Installation & Setup
+
+1.  **Get an API Key:**
+    *   You must have an API key to use the HIBP API. You can get one for free from the [HIBP API Key Page](https://haveibeenpwned.com/API/Key).
+    *   Once you have your key, open the `pwned_checker/checker.py` file.
+    *   Replace the placeholder `"YOUR_API_KEY_HERE"` with your actual API key:
+        ```python
+        # In pwned_checker/checker.py
+        headers = {
+            "hibp-api-key": "YOUR_API_KEY_HERE"  # <-- PASTE YOUR KEY HERE
+        }
+        ```
+
+2.  **Navigate to the project directory.**
+    Make sure you have the `pwned_main.py` script and the `pwned_checker` directory.
+
+3.  **Create a virtual environment (recommended):**
+    ```bash
+    python -m venv venv_pwned
+    source venv_pwned/bin/activate  # On Windows: venv_pwned\Scripts\activate
+    ```
+
+4.  **Install dependencies:**
+    Navigate to the `pwned_checker` directory and run:
+    ```bash
+    pip install -r requirements.txt
+    ```
+
+## How to Run
+
+1.  Open your terminal or command prompt.
+2.  Make sure your virtual environment is activated.
+3.  Navigate to the root directory containing `pwned_main.py`.
+4.  Run the application with the email you want to check:
+    ```bash
+    python pwned_main.py "some.email@example.com"
+    ```
+
+### Example Usage
+
+**To check an email:**
+```bash
+python pwned_main.py "test@example.com"
+```
+
+**Example Output (If Breaches are Found):**
+```
+Checking account: test@example.com
+
+--- Account Found in Breaches! ---
+The account 'test@example.com' was found in the following breaches:
+
+  - Breach: Adobe
+    Domain: adobe.com
+    Date: 2013-10-04
+    Description: In October 2013, 153 million Adobe accounts were breached...
+
+  - Breach: MyFitnessPal
+    Domain: myfitnesspal.com
+    Date: 2018-02-25
+    Description: In February 2018, the health and fitness service MyFitnessPal suffered a data breach...
+```
+
+**Example Output (If No Breaches are Found):**
+```
+Checking account: a.secure.email@example.com
+
+--- No Breaches Found ---
+The account 'a.secure.email@example.com' was not found in any known breaches.
+```
+
+## Disclaimer
+
+*   This tool relies on the 'Have I Been Pwned?' service. Its accuracy is dependent on the data maintained by HIBP.
+*   A "not found" result does not guarantee an account is secure, only that it has not appeared in a breach known to HIBP.
+*   Handle your API key securely. Do not commit it to public repositories. The method of placing it directly in the source code is for simplicity; for more secure applications, use environment variables or a secrets management system.
+
+## File Structure
+```
+.
+├── pwned_main.py                 # Main CLI application script
+├── pwned_checker/
+│   ├── __init__.py             # Makes pwned_checker a Python package
+│   ├── checker.py              # Logic for interacting with the HIBP API
+│   └── requirements.txt        # Python dependencies
+└── README_pwned_checker.md       # This documentation file
+```

README_sensitive_data_scanner.md

@@ -0,0 +1,86 @@
+# Sensitive Data Scanner CLI
+
+This tool recursively scans a specified directory to find sensitive data patterns within files, such as API keys, private keys, and credit card numbers.
+
+## Features
+
+*   Scans all files within a directory and its subdirectories.
+*   Uses a predefined set of regular expressions to identify potential sensitive information.
+*   Reports the file path and the type of sensitive data found.
+
+## Patterns Detected
+
+The scanner looks for the following patterns:
+*   AWS Access Key ID
+*   AWS Secret Access Key (Note: this pattern is broad and may cause false positives)
+*   Google API Key
+*   Generic API Key patterns
+*   RSA and SSH Private Keys (looks for the header)
+*   Credit Card Numbers (Visa, Mastercard, American Express, Discover)
+*   U.S. Social Security Numbers
+
+## Prerequisites
+
+*   Python 3.6+
+*   No external libraries are required.
+
+## How to Run
+
+1.  **Navigate to the project directory.**
+    Ensure you have the `scanner_main.py` script and the `sensitive_data_scanner` directory.
+
+2.  **Run the application from your terminal.**
+    Provide the path to the directory you want to scan as a command-line argument.
+
+    ```bash
+    python scanner_main.py /path/to/your/directory
+    ```
+
+### Example Usage
+
+**To scan a directory named `my_project`:**
+```bash
+python scanner_main.py ./my_project
+```
+
+**Example Output:**
+```
+Scanning directory: ./my_project
+
+--- Sensitive Data Found! ---
+
+[+] File: ./my_project/config/prod.env
+  - Found 1 instance(s) of 'AWS Access Key ID'
+    Example: AKIAIOSFODNN7EXAMPLE
+  - Found 1 instance(s) of 'AWS Secret Access Key'
+    Example: wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY
+
+[+] File: ./my_project/src/dev/test_keys.txt
+  - Found 1 instance(s) of 'RSA Private Key'
+    Example: -----BEGIN RSA PRIVATE KEY-----
+```
+
+**If no data is found:**
+```
+Scanning directory: ./clean_project
+
+--- No Sensitive Data Found ---
+Scan complete. No files with matching sensitive data patterns were found.
+```
+
+## Disclaimer
+
+*   **This tool is not foolproof.** It uses regular expressions to find patterns, which can result in both **false positives** (flagging data that is not sensitive) and **false negatives** (missing sensitive data that doesn't match a pattern).
+*   The results should be manually reviewed to confirm if the flagged data is truly sensitive.
+*   This tool is intended for educational and basic scanning purposes. For enterprise-grade data loss prevention (DLP), consider using more advanced, dedicated security solutions.
+*   The tool reads all files as text. It may not be effective on binary files and will ignore files it cannot read due to permissions or encoding issues.
+
+## File Structure
+```
+.
+├── scanner_main.py                 # Main CLI application script
+├── sensitive_data_scanner/
+│   ├── __init__.py               # Makes sensitive_data_scanner a Python package
+│   └── scanner.py                # Core logic for file scanning and regex matching
+└── README_sensitive_data_scanner.md # This documentation file
+```

index.html

@@ -1,35 +1,63 @@
 <!DOCTYPE html>
 <html lang="en">
-  <head>
-    <meta charset="utf-8" />
-    <link rel="icon" href="/favicon.ico" />
-    <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <meta name="theme-color" content="#000000" />
-    <meta
-      name="description"
-      content="Web site created using @vitejs/plugin-react"
-    />
-    <link rel="apple-touch-icon" href="/logo192.png" />
-    <!--
-      manifest.json provides metadata used when your web app is installed on a
-      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
-    -->
-    <link rel="manifest" href="/manifest.json" />
-    <title>React App</title>
-  </head>
-  <body>
-    <noscript>You need to enable JavaScript to run this app.</noscript>
-    <div id="root"></div>
-    <!--
-      This HTML file is a template.
-      If you open it directly in the browser, you will see an empty page.
-
-      You can add webfonts, meta tags, or analytics to this file.
-      The build step will place the bundled scripts into the <body> tag.
-
-      To begin the development, run `npm start` or `yarn start`.
-      To create a production bundle, use `npm run build` or `yarn build`.
-    -->
-  </body>
-  <script type="module" src="/src/index.jsx"></script>
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Cybersecurity Tools Collection</title>
+    <style>
+        body { font-family: sans-serif; line-height: 1.6; margin: 2em; }
+        h1 { text-align: center; }
+        ul { list-style: none; padding: 0; }
+        li { background: #f4f4f4; border: 1px solid #ddd; margin-bottom: 1em; padding: 1em; }
+        h2 { margin-top: 0; }
+        a { text-decoration: none; color: #0366d6; }
+        a:hover { text-decoration: underline; }
+    </style>
+</head>
+<body>
+    <h1>Cybersecurity Tools Collection</h1>
+    <p>This repository contains a collection of various security-related tools. Click on a tool's documentation to learn more about its functionality and how to use it.</p>
+    <ul>
+        <li>
+            <h2>Account Pwned Checker</h2>
+            <p>A command-line tool to check if an email account has been compromised in a known data breach using the 'Have I Been Pwned?' API.</p>
+            <a href="README_pwned_checker.md">View Documentation</a>
+        </li>
+        <li>
+            <h2>Sensitive Data Scanner</h2>
+            <p>A tool to recursively scan a directory for files containing sensitive data patterns like API keys, private keys, and credit card numbers.</p>
+            <a href="README_sensitive_data_scanner.md">View Documentation</a>
+        </li>
+        <li>
+            <h2>Port Scanner</h2>
+            <p>A simple, multi-threaded TCP port scanner to find open ports on a target host.</p>
+            <a href="README_port_scanner.md">View Documentation</a>
+        </li>
+        <li>
+            <h2>IoT Simulator</h2>
+            <p>A simulator for IoT devices.</p>
+            <a href="README_iot_simulator.md">View Documentation</a>
+        </li>
+        <li>
+            <h2>Network Mapper</h2>
+            <p>A tool to generate network topology diagrams from a CSV file.</p>
+            <a href="README_netmap.md">View Documentation</a>
+        </li>
+        <li>
+            <h2>Scam Detector</h2>
+            <p>A tool to detect scams in social media.</p>
+            <a href="README_scam_detector.md">View Documentation</a>
+        </li>
+        <li>
+            <h2>Simple Browser</h2>
+            <p>A simple web browser.</p>
+            <a href="README_simple_browser.md">View Documentation</a>
+        </li>
+        <li>
+            <h2>Wi-Fi Analyzer</h2>
+            <p>A tool to analyze Wi-Fi networks on Linux systems.</p>
+            <a href="README_wifi_analyzer.md">View Documentation</a>
+        </li>
+    </ul>
+</body>
 </html>