Comprehensive network security audit covering perimeter, internal segmentation, and wireless.
Your network is the foundation of everything — every application, every user connection, every data flow passes through it. A Crewtec Network Security Audit systematically reviews your network architecture, device configurations, segmentation controls, and access policies against CERT-In Baseline Requirements, ISO 27001 Annex A, and industry best practices. The result is a prioritised picture of your network risk — not just what's exposed, but what an attacker could actually do with it.
A structured process — so you always know what is happening and what comes next.
Review network topology, segmentation design, DMZ architecture, and trust zones against security best practices and your risk profile.
Audit firewall rule sets, router/switch configurations, ACLs, and network access control policies for over-permissive rules, default credentials, and unused access.
Systematic scanning of network infrastructure — identifying open ports, vulnerable services, outdated firmware, and misconfigurations across the network estate.
Assess Wi-Fi configurations, encryption standards (WPA2/WPA3), rogue access point risk, guest network isolation, and wireless access control policies.
CVSS+EPSS scored findings with network-specific remediation guidance — firewall rule cleanup, segmentation recommendations, and configuration hardening steps. Retest included.
A network security audit covers your complete network infrastructure: firewall configurations and rule sets, router and switch security settings, network segmentation and VLAN design, wireless security, remote access (VPN/ZTNA), network access control, and exposure of management interfaces. It also reviews your network documentation and change management practices.
Yes. CERT-In's July 2025 Comprehensive Audit Policy Guidelines explicitly list network infrastructure security audit as one of the 26 mandated audit engagement types. For organisations subject to CERT-In compliance — government agencies, critical infrastructure, IT service providers — network security audits are part of the required audit programme.
A network security audit is a configuration and architecture review — it examines how your network is designed and configured, evaluating rules, policies, and settings. Network penetration testing actively attempts to exploit vulnerabilities — it simulates an attacker trying to break in. Both are valuable: the audit tells you how your network is configured; the penetration test tells you whether those configurations can actually be bypassed.
We audit all major network infrastructure vendors — Cisco, Palo Alto, Fortinet, Check Point, Juniper, HP/Aruba, and others. We review physical and virtual firewalls, core/distribution/access switches, wireless LAN controllers and access points, SD-WAN devices, and load balancers.
Yes — wireless security is included in all network security audits. We review Wi-Fi encryption standards, authentication mechanisms, rogue access point exposure, guest network isolation, and wireless access control policies. If you have offices or manufacturing floors with Wi-Fi, this is a critical component.
Annual network security audits are the minimum recommended by CERT-In and ISO 27001. After significant network changes — new sites, new firewall deployments, SD-WAN migration, or data centre moves — a targeted review is recommended. Organisations in regulated sectors (BFSI, government) should consider semi-annual audits.
Governance
ISO 42001 AI Management System design, implementation, and audit readiness for Indian enterprises deploying AI.
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Fractional Chief Information Security Officer service — strategy, board reporting, risk management, and compliance oversight on a monthly retainer.
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IT and information security risk programme design — risk registers, risk appetite frameworks, board reporting, and third-party risk management.
Learn More →Book a free 30-minute consultation — no obligation. We will review your situation and give you an honest recommendation.
