Creating a secure application development lifecycle involves several important steps. Each step should be meticulously planned and executed to ensure that security considerations are integrated throughout the entire process. Here’s a detailed guide on how you can create and manage a secure application development lifecycle:

1. Establish Security Requirements and Policies

• Identify and understand the security needs specific to the application. This could include compliance with industry standards like PCI DSS for payment processing or HIPAA for healthcare applications.
• Define security policies and guidelines that align with these requirements. These should include expectations for handling data, coding practices, and access controls.

2. Educate and Train Your Team

• Provide security awareness training for all team members to understand the importance of security in the development process.
• Offer specialized training for developers on secure coding practices.
• Ensure that the training is updated regularly to account for new threats and security trends.

3. Integrate Security in Design and Architecture

• Embed security considerations during the design phase by utilizing threat modeling. Identify potential security risks and determine how to mitigate them.
• Ensure that the application architecture includes necessary security controls like authentication, authorization, encryption, and logging.
• Apply the principle of least privilege and ensure that the system components communicate securely.

4. Implement Secure Coding Practices

• Use coding standards that focus on security, such as OWASP’s Secure Coding Practices.
• Conduct regular code reviews with a focus on identifying security issues.
• Utilize static and dynamic analysis tools to help scan the code for vulnerabilities.

5. Manage Third-party Components

• Keep an inventory of all third-party components used within the application.
• Regularly check these components for vulnerabilities and apply updates or patches as soon as they are available.
• Consider using software composition analysis (SCA) tools to automate the detection of vulnerable components.

6. Perform Security Testing

• Implement a testing plan that includes both manual and automated security testing methods, such as penetration testing, vulnerability assessments, and security-focused unit testing.
• Use automated tools for continuous testing in the CI/CD pipeline.
• Ensure that identified vulnerabilities are prioritized based on risk, and a response plan is in place for remediation.

7. Incorporate Incident Response and Recovery

• Establish an incident response plan to act quickly in case of a security breach.
• Regularly conduct practice drills to ensure that team members know their roles in the event of an incident.
• Set up a system for backing up and restoring data to ensure business continuity following an incident.

8. Maintain and Monitor the Application Post-Deployment

• After deployment, continuously monitor the application for unusual activities that could indicate a security issue.
• Set up alerts and logging to detect and respond to incidents in real-time.
• Ensure that the deployed application undergoes regular security audits and assessments.

9. Update and Patch Regularly

• Implement a process for regularly updating and patching the application and its environment.
• Monitor sources of information for new vulnerabilities, and prioritize patching based on the criticality of the issue.
• Keep documentation of all updates and patches applied.

10. Document and Improve

• Maintain detailed documentation throughout the application lifecycle, including security requirements, design decisions, testing results, and incident reports.
• Use this documentation to learn from past experiences and improve security practices.
• Regularly review and update the security standards and policies to adapt to emerging threats or changes in the regulatory environment.

In conclusion, the secure application development lifecycle is multifaceted and requires a comprehensive strategy that covers requirements gathering, design, implementation, testing, maintenance, and continuous improvement. By creating a culture that values security within your organization and integrating these practices into the development process, you can significantly reduce the risks associated with application security.