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SECURITY

Build an AI Security Scanner with Gemini

Detect vulnerabilities automatically - scan Python code for SQL injection and secrets

Start Building
Build an AI Security Scanner with Gemini project preview
Python
Gemini

Difficulty

Intermediate

Time to complete

90 minutes

Availability

Free

BUILD

What you'll build

Build a CLI security scanner powered by Gemini AI that detects SQL injection, hardcoded secrets, and weak cryptography with color-coded severity ratings.

1. Connect to Gemini API

Set up Python environment, get your API key, and test the connection.

2. Detect Security Vulnerabilities

Create prompts that identify SQL injection, hardcoded secrets, and weak cryptography.

3. Add Severity Ratings

Implement CRITICAL, HIGH, MEDIUM, and LOW classifications with color-coded output.

4. Build File Scanner

Accept command-line arguments and scan real Python files for vulnerabilities.

5. Test and Deploy

Run comprehensive tests on vulnerable code and clean up resources.

Your portfolio builds as you work.

Every project documents itself as you go. Finish the work, and your proof is ready to share.

PROJECT

Real world application

Skills you'll learn

  • Security Analysis

    Detect SQL injection, hardcoded secrets, and weak cryptography vulnerabilities

  • API Integration

    Connect applications to Gemini AI for code analysis

  • CLI Development

    Build command-line tools with argument parsing and file handling

  • Prompt Engineering

    Craft structured AI prompts for consistent security analysis

  • Environment Management

    Secure API keys with virtual environments and dotenv

  • Output Formatting

    Create professional colored terminal output with severity ratings

Tech stack

  • Python logo

    Python

    Powerful programming language for building security tools and CLI applications.

  • Gemini logo

    Gemini

    Google's AI model for security pattern detection and code analysis.

The way you've designed project based learning paths is genuinely refreshing! The projects are both challenging and rewarding

Rajeev Krishna

Software Engineer

OUTCOME

Where this leads.

Relevant Jobs

Roles where these skills matter:

  • Security Engineer
  • Application Security Analyst
  • DevOps Engineer
  • Python Developer

Security Engineer Roadmap

Continue your security pathway with advanced projects in cloud security, penetration testing, and security automation.

Security Engineer Roadmap

Continue the Journey

FAQs

Everything you need to know

“Yes! The [Gemini API](https://ai.google.dev/gemini-api) has a generous free tier with 1,500 requests per day, which is more than enough for this project. You don't need a credit card to get started. This NextWork project uses the free tier exclusively with zero cloud costs. [Google AI Studio](https://aistudio.google.com) provides free API keys for personal projects, making this an ideal learning pathway with no financial barriers.”

“No prior security or coding experience is required. This NextWork project teaches security concepts (SQL injection, hardcoded secrets, weak cryptography) as you build. You'll learn Python basics, API integration, and vulnerability detection in one hands-on project. The step-by-step guidance walks you through environment setup, prompt engineering, and CLI development. If you can follow instructions and copy code, you can complete this project.”

“This NextWork security scanner detects three critical vulnerability types: SQL injection (attackers manipulating database queries), hardcoded secrets (passwords and API keys stored in code), and weak cryptography (using outdated hashing like MD5). These are real vulnerabilities found in production code at companies like Google DeepMind, OpenAI, and Snyk. The scanner uses Gemini AI to analyze code context - not just pattern matching - catching issues that simple tools miss.”

“[Gemini](https://deepmind.google/technologies/gemini) is trained on millions of code examples and security patterns from real-world breaches. Unlike traditional static analysis tools that use regex patterns, AI understands code context and logic flow. It catches context-dependent SQL injection, subtle cryptographic weaknesses, and hidden secrets that pattern matchers miss. This NextWork project teaches you prompt engineering - how to structure requests so AI provides consistent, actionable security analysis with severity ratings.”

“This NextWork project builds an educational security scanner that demonstrates AI-powered vulnerability detection. For production use, consider enterprise tools like Snyk, Semgrep, or GitHub Advanced Security that include compliance reporting, fix suggestions, and continuous monitoring. However, this project teaches you the fundamentals: how AI detects vulnerabilities, severity classification, and CLI tool development. These skills transfer directly to professional security engineering roles.”

“Security professionals use standardized severity ratings to prioritize fixes. CRITICAL means immediate exploitation possible (fix right now). HIGH means serious vulnerability exploitable with moderate effort (fix within days). MEDIUM requires specific conditions to exploit (schedule soon). LOW has limited impact (fix when convenient). This NextWork project teaches you to classify vulnerabilities like professional security teams at Netflix, Uber, and Spotify, helping you focus limited time on the most dangerous issues first.”

One Project. Real Skills.

90 minutes from now, you'll have completed Build an AI Security Scanner with Gemini. No prior experience needed. Just step-by-step guidance and a real project for your portfolio.

Let's Build This

Intermediate level