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14/09/2026 10:10 am
TL;DR: Security operations overhead can be reduced by closing access by default, enforcing least privilege continuously, and automating policy enforcement, according to Zero Networks. Customers reportedly save 10 to 15 hours per engineer each week and lower total cost of ownership by 87%; the real shift is that containment and access control move from manual response work to architecture, which is especially relevant as identity sprawl, machine identities, and AI adoption expand the attack surface.
NHIMG editorial — based on content published by Zero Networks: How Zero Trust Architecture Reduces Security OpEx
By the numbers:
- 80% of executives say they’re facing pressure to reduce the cost of security.
- Just 11% of CISOs believe their security teams are adequately staffed.
- Zero Networks customers save 10 to 15 hours per week, per engineer, on policy maintenance.
Questions worth separating out
Q: How should security teams implement zero trust for workloads?
A: Start by binding identity to the workload, not to the network location.
Q: Why does a Zero Trust model reduce the impact of compromised accounts and lateral movement?
A: Zero Trust reduces risk because it removes implicit trust and treats every access request as potentially hostile.
Q: What are the signs that a zero trust rollout is failing in practice?
A: Common warning signs include overlapping tools that do not integrate well, inconsistent policy enforcement across environments, weak visibility into asset and transaction flows, and users bypassing controls because processes are too cumbersome.
Practitioner guidance
- Map internal access paths to least privilege boundaries Inventory which users, services, and machine identities can reach which resources, then remove broad internal reach that is not required for business function.
- Automate policy enforcement for identity-aware access Shift repetitive policy maintenance into deterministic automation so rules are applied consistently as workloads change.
- Reduce privileged access that persists beyond a session Replace always-on privileged pathways with just-in-time approval and time-bound access wherever feasible.
What's in the full article
Zero Networks' full article covers the operational detail this post intentionally leaves for the source:
- The specific policy-engine flow for closing access by default across network paths and privileged requests
- The customer-reported maintenance savings behind the 10 to 15 hours per engineer figure
- The implementation details for identity segmentation, just-in-time MFA, and automated policy creation
- The operational rationale for replacing manual segmentation with a unified enforcement model
👉 Read Zero Networks' analysis of how Zero Trust architecture can reduce security OpEx →
Zero trust architecture and OpEx: what changes for security teams?
Explore further
14/09/2026 10:11 am
Closed-by-default access is now an operational control, not just an architecture preference. The article shows that Zero Trust is being justified as a way to lower workload, reduce alert volume, and shrink the number of connections humans must manage. That matters because modern security programmes are increasingly judged on sustainability as well as coverage. IAM and PAM teams should treat closed-by-default policy as a workload reduction strategy tied to continuous least privilege.
A question worth separating out:
Q: What should organisations prioritise first, segmentation or identity-based access control?
A: Prioritise identity-based access control when your environment is defined by cloud workloads, service accounts, and machine identities that move faster than network boundaries. Segmentation still matters, but identity gives policy a stable reference point for who or what should be allowed to connect. That makes least privilege easier to enforce and easier to audit.
👉 Read our full editorial: Zero trust architecture can cut security OpEx and shrink blast radius
