Firewall Architecture & Management
Rule review, policy cleanup, zone configuration, and ongoing firewall management — not just the deployment of hardware with default settings that accumulate exceptions over time.
Ask about this capabilityDOYB Services
Your Network Is the Largest Attack Surface in Your Environment — and Most Organizations Have Never Formally Mapped It
DOYB delivers network security built on a documented understanding of your actual topology — every segment, every trust boundary, every ingress and egress point.
The Reality
Most Networks Were Designed for Connectivity, Not Security
Networks are typically built to connect users to resources — not to contain a breach when a device is compromised. Flat networks, overly permissive firewall rules, and legacy VPN configurations accumulate over years of adding capacity without reviewing what was already there. The result is an environment where a single compromised endpoint can reach nearly everything.
The risk isn't the network you built intentionally. It's the exceptions, the shadow infrastructure, and the access paths that were never formally reviewed. Network security starts with understanding what actually exists — not what the diagram says.
79 min
median time for an attacker to move laterally from initial access to another system — network segmentation directly limits this blast radius. CrowdStrike 2025 Global Threat Report
$4.88M
average cost of a data breach in 2024 — breaches that spread across unsegmented networks consistently produce higher costs than contained ones. IBM Cost of a Data Breach Report 2024
35%
of breaches involve internal actors — network segmentation limits the access internal threats can exploit, not just external ones. Verizon DBIR 2024
How DOYB Approaches It
Network Security Built on a Documented Topology, Not an Assumed One
Every DOYB network security engagement begins with the Ascend Cyber assessment — which includes a network architecture review that maps actual topology, documents trust boundaries, identifies firewall rule exceptions, and surfaces shadow infrastructure that wasn't formally deployed.
From there, we remediate in priority order — starting with the exposures that present the highest risk, not the most visible ones. Network security at DOYB is a documented program with defined scope, not a series of independent firewall changes.
Segmentation is the highest-leverage network security investment
Most network security spending goes to perimeter controls. But perimeter breaches happen — the difference between a contained incident and a major breach is whether the attacker can move laterally once inside. Proper segmentation is the control that limits that movement.
What's Included
Network Security Capabilities
Each capability is available as part of a comprehensive network security program or scoped as a standalone engagement.
Network Segmentation
VLAN design, trust zone definition, and micro-segmentation that limits lateral movement when a device is compromised — because a flat network means one breach affects everything.
Ask about this capabilityIntrusion Detection & Prevention (IDS/IPS)
Tuned signature and behavioral detection with documented alert thresholds, suppression policies, and investigation workflows — so alerts mean something instead of being ignored.
Ask about this capabilityVPN & Remote Access Security
Secure remote access architecture — including zero-trust network access (ZTNA) for organizations where legacy VPN creates unacceptable exposure through overprivileged network access.
Ask about this capabilityWireless Security
Enterprise wireless design, rogue AP detection, WPA3 enforcement, and guest network segmentation — not consumer-grade access points deployed on a network that was never designed for wireless.
Ask about this capabilityNetwork Traffic Monitoring & Analysis
Ongoing traffic baselining, anomaly detection, and periodic traffic analysis integrated into your security operations program — so unusual activity surfaces before it becomes an incident.
Ask about this capabilityWhy It Matters
Perimeter Controls Alone Aren't Enough Once Someone Is Already Inside
A firewall that blocks external traffic doesn't stop an attacker who got in through a phishing email, compromised credentials, or a trusted third-party connection. The question after perimeter breach is how far they can move. Segmentation controls the answer.
DOYB's approach to network security addresses both layers — tightening what comes in, and limiting what happens if something gets through. Both require knowing what's actually on your network first.
Learn about Ascend CyberCompliance frameworks require network controls
NIST CSF, CMMC, PCI DSS, and HIPAA all include specific network security and segmentation requirements. Network security investments that align to these frameworks simultaneously improve posture and advance compliance readiness.
Remote work expanded the network perimeter
Remote and hybrid work environments extend network risk beyond the physical office. VPN configurations, remote access policies, and endpoint trust decisions made during rapid remote deployment often were never formally reviewed.
Start with the assessment
The Ascend Cyber assessment includes a network architecture review. It's available as a standalone engagement — giving you a documented picture of your network's actual risk exposure before any remediation spending begins.
Related Services & Assessments
Cybersecurity & Managed Security
Network security and managed detection work together — network monitoring feeds directly into the security operations program that responds to what it surfaces.
Learn moreManaged IT Services
Managed IT and network security are directly connected — endpoint management without network segmentation leaves lateral movement paths open when a device is compromised.
Learn moreAscend Cyber Assessment
The structured evaluation of your cybersecurity posture that identifies network architecture gaps, firewall misconfigurations, and segmentation deficiencies before remediation begins.
Learn moreStart With Structure
Not Sure Where You Stand?
Start with the Ascend Cyber.
The Ascend Cyber assessment gives you a structured evaluation of your current state — documented gaps, prioritized risk, and a clear roadmap before any engagement begins. No assumptions. No guesswork.