Day 1:

Session 1: Introduction to Secure Coding Principles

• Overview of secure coding best practices.
• The importance of security in the software development lifecycle.

Session 2: Common Vulnerabilities and Threats

• Exploring vulnerabilities specific to Python, Java, and C#.
• Understanding OWASP guidelines in the context of coding.

Session 3: Input Validation and Error Handling

• Importance of input sanitization and validation.
• Secure error handling practices to avoid information leakage.
• Hands-on lab: Implementing input validation in Python, Java, and C#.

Day 2:

Session 1: Data Protection and Secure Storage

• Techniques for encrypting sensitive data.
• Managing secrets and keys securely.
• Hands-on lab: Encrypting and securely storing data.

Session 2: Secure Authentication and Session Management

• Best practices for implementing secure authentication.
• Protecting session data and preventing session hijacking.
• Hands-on lab: Developing secure login systems.

Session 3: Secure Code Reviews and Static Analysis

• Techniques for conducting effective code reviews.
• Using static analysis tools to identify vulnerabilities.
• Hands-on lab: Reviewing and analyzing insecure code.

Day 3:

Session 1: Language-Specific Security Features and Practices

• Secure coding practices unique to Python, Java, and C#.
• Leveraging language-specific security features.
• Hands-on lab: Applying secure coding in sample applications.

Session 2: Preventing Advanced Threats

• Mitigating advanced threats such as XSS, CSRF, and SQL injection.
• Real-world case studies and solutions.

Session 3: Final Review and Capstone Project

• Comprehensive review of key concepts.
• Capstone project: Identifying and mitigating vulnerabilities in a sample application.
• Group presentations and feedback.