SSDLC - Secure Software Development Lifecycle

In today’s rapid software development environment, the urgency to meet deadlines can often leave security in the dust. Enter the Secure Software Development Lifecycle (SSDLC), a strategy that weaves security into every stage of software creation. It’s the bridge between rapid development and robust security, transforming how teams build from inception to final release. 

What is a secure software development lifecycle (SSDLC)?

SSDLC is a systematic framework to ensure the integration of security measures throughout the software development process. This framework is essential in today’s digital environment, where security is critical to software development. With the primary objective to identify and mitigate potential security vulnerabilities and threats, it extends well beyond traditional SDLC with risk assessment, secure coding practices, regular security testing, and maintenance in its arsenal.

Examples of SSDLC

The concept of SSDLC includes various models and frameworks, each designed to integrate security into different stages of the software development process. Here are some examples:


  • Microsoft Security Development Lifecycle (MS SDL): An early SSDLC model by Microsoft, integrating security into each development stage, aligning well with contemporary practices.
  • NIST 800-64: Crafted by the National Institute of Standards and Technology, it offers detailed guidelines for security integration, especially for U.S. federal agencies.
  • SAMM (Software Assurance Maturity Model): This model, provided by OWASP, provides a flexible framework to implement SSDLC practices, adaptable to an organization’s specific needs and security maturity.
  • DevSecOps: This approach merges security with the DevOps process, ensuring continuous security with an emphasis on automation to keep pace with DevOps speeds.

The SSDLC process 

The SSDLC process can be divided into several steps, each focusing on different aspects of software development while embedding security considerations:


  • Planning: Identifying and integrating security requirements and risk assessments into the project plan.
  • Requirements and analysis: Defining and understanding security requirements to incorporate into software design.
  • Design and prototyping: Focusing on secure SDLC  through secure patterns, controls, and reviews.
  • Development: Emphasizing secure coding practices and using tools for vulnerability detection.
  • Deployment: Ensuring safe deployment with security assessments and SSDLC best practices.
  • Maintenance: Lastly, security remains an ongoing process involving regular patching, monitoring for security issues, and conducting security reviews.

5 SSDLC phases

SSDLC is structured into five distinct phases, each focusing on integrating security aspects into the software development process. Here’s a quick overview:


  • 1. Kickoff with initiation and planning: This is where you roll up your sleeves and get the ball rolling. You’re sketching out what needs to be done, pinpointing those security goals, and figuring out the tools and tactics you’ll need. 
  • 2. Design and architecture: This is the part where you’re putting on your architect hat, crafting a design that’s as secure as it is slick.
  • 3. Coding time in development: Here’s where the magic happens. You’re turning those designs into reality, coding away, but keeping it tight and secure.
  • 4. Testing – the trial by fire: Once your masterpiece is coded, it’s time to put it through the wringer. You’re looking for weak spots, chinks in the armor.
  • 5. Deployment and maintenance: After surviving the gauntlet of tests, you push your software out into the real world. But hey, the job’s not done. The digital world changes fast, so keep your software tough and updated.

Benefits of SSDLC 

Implementing SSDLC reduces vulnerability exposure by catching security issues early and minimizing risks in production. This early detection is cost-effective, avoiding hefty expenses from post-release fixes and damage control. SSDLC empowers developers to lead security efforts, enhancing code safety and understanding of security impacts. It ensures alignment with regulatory standards like GDPR, building trust and compliance. Plus, SSDLC streamlines project timelines by integrating security throughout the development, leading to efficient, timely completion of secure software projects.

How Entro supports SSDLC

Understanding SSDLC’s importance is crucial for organizations looking to enhance their security posture while keeping their software development process efficient. Entro, since its inception, has been designed with SSDLC in mind to blend seamlessly into the development process without disrupting it. Its out-of-band operation through APIs and log analysis ensures that security is embedded without needing code alterations, a key tenet of SSDLC. 


Entro enhances various SSDLC stages by managing and enriching secrets, offering contextual insights key to informed decision-making in risk assessment. Moreover, its anomaly detection and misconfiguration alerts align with SSDLC’s focus on continuous security monitoring and maintenance. Overall, it’s a fantastic tool for addressing modern challenges and optimizing operational efficiency. Click here to know more.

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