The Modern Three Lines of Defense
Berk Algan
September 20, 2024
The "Three Lines of Defense" (3LoD) model has been the gold standard for risk management for decades.
But for an agile startup, the traditional model can feel bureaucratic and slow.
The challenge is maintaining framework rigor while adapting it to the high-velocity delivery of modern software.
Rethinking the Model for Speed
In a modern startup, the boundaries between the lines must be fluid yet distinct. It's not about adding layers of approval, but about establishing clear accountability.
Our vCRO model acts as the specialized engine that clarifies these roles, ensuring that everyone knows their part in the security story without stepping on each other's toes.
Line 1: Ownership
Engineering and Product teams who own the risks and execute security within the code. They build security in from day one as a core feature of the product.
Line 2: Oversight (The vCRO)
Where we sit. We define the policies, provide the tools, and monitor the posture without blocking the sprint. We are the bridge between dev and compliance.
Line 3: Independent Assurance
Traditionally, Internal Audit serves as the third line of defense. However, most startups don't have a dedicated internal audit function.
In the startup context, this responsibility falls to external auditors and independent testers who provide the official certifications required for Tier-1 enterprise deals and regulated markets.
The key to success is Agile Governance. This means shifting security left and automating the oversight process to remove human bottleneck.
By embedding 2nd line oversight into daily operations, compliance becomes a natural byproduct of great engineering, not a friction point that slows you down.
Start Your Security Transformation
Apply this framework to your organization and see the results. We help high-growth startups implement modern GRC without the friction.
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