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When Networks Defend Themselves: A New Model for Cyber Resilience

Published December 17, 2025

When Networks Defend Themselves: A New Model for Cyber Resilience

Cyber strategies have long revolved around a single goal: keeping attackers out. Firewalls and endpoint detection have formed the front line. But today’s networks are vast, hybrid, and constantly changing – and the perimeter is easier than ever to slip past. Once inside, attackers can move laterally through the environment, quietly mapping systems and identifying the data and infrastructure most valuable to exploit. 

To explore how organizations are responding to this shift, we recently partnered with the Global Sustainable Trade Initiative (GSTI) to produce a documentary streaming on CNBC’s platforms. The film examines how organizations are rethinking cyber and business resilience as threats accelerate and traditional perimeter defenses fall short. 

As Daisy Spiridopoulos, VP of Marketing at Zero Networks, explains: 

“It's becoming much, much harder to define what the perimeter is for any given Enterprise network. What you have to keep in mind is that at this point, a breach is inevitable... The point is not to stop a breach; the point is to stop a successful breach.” 

This idea sits at the core of what we call the Era of the Defender – a shift away from reactive security models and toward designing networks that can contain attacks automatically, even after access is gained. 

In the Era of the Defender, resilience isn’t about chasing alerts or trying to predict every possible attack. It’s about limiting what attackers can do once they’re inside – specifically, preventing lateral movement so threats can’t spread or escalate.  

That’s where automated microsegmentation plays a critical role. By enforcing least-privilege access between systems and identities, microsegmentation creates containment boundaries that stop attackers from moving freely across the network. Historically, this approach was powerful but difficult to deploy. Today, automation has changed that. 

“Implementing microsegmentation is as urgent today as it ever has been. 60 to 70% of all breaches leverage lateral movement. Ransomware is approaching a trillion dollar industry. Ransomware is not going anywhere anytime soon, and lateral movement is the number one mechanism by which it succeeds. If you stop lateral movement, you stop ransomware. The best way to stop lateral movement is microsegmentation.”
- Daisy Spiridopoulos, VP of Marketing at Zero Networks 

Zero Networks was built to make microsegmentation practical at scale – automatically discovering assets, learning traffic patterns, and enforcing policies without manual effort or disruption. The result is a network that defends itself by design, enabling true cyber resilience. 

How Zero Networks Enables Business Resilience 

At its core, Zero Networks enables business resilience by design – not through more alerts or manual controls, but by stopping breaches before they can spread. By automating identity-based network controls and containment, Zero Networks eliminates lateral movement, the root cause of widespread ransomware and data exposure. 

The platform replaces multi-year, labor-intensive security projects with automated microsegmentation that adapts as environments change. Threats are isolated before they can disrupt operations, while security teams reclaim thousands of hours previously spent on manual policy management. The result is faster Zero Trust enforcement, lower operational cost, and protection that scales without increasing headcount – keeping the business running even under active attack. 

This documentary builds on our June announcement introducing the Era of the Defender, which outlines how automated containment removes the burden of constant reaction from security teams and shifts the balance of power away from attackers. 

For a deeper look at how this approach is reshaping cyber resilience, we also recommend reading our recent CNBC Acumen feature, Resilience by Design: How Zero Networks Is Empowering Defenders in the New Era of Cybersecurity, which explores why containment is becoming foundational across industries. 

Together, these pieces reflect a simple truth: when networks are designed to defend themselves, breaches don’t have to become business disruptions.