Streamlining Firewall Assurance for a Leading Telecommunications Provider

The Challenge
Our client, a leading telecommunications provider, was navigating a complex security landscape. With multiple firewalls from different vendors and limited internal resources, their team faced mounting challenges: outdated rule sets cluttering the environment, compliance gaps creeping in, and the constant risk of new rules introducing vulnerabilities. On top of that, they needed assurance that their routers, not just firewalls, adhered to stringent regulatory and internal security policies.

Our Approach
We stepped in with a structured, risk-based strategy. First, we conducted a Comprehensive Risk & Violation Assessment, mapping out where the biggest threats lay. Next, we built a targeted remediation plan—fixing critical risks without disrupting business operations.

To strengthen governance, we standardised firewall configurations across vendors, aligning them with both internal frameworks and industry regulations. We didn’t stop there: we extended compliance checks to routers, creating network-wide assurance. Finally, we established continuous monitoring and review cycles to ensure the environment stays secure as it evolves.

The Results

• Improved Compliance Posture – Firewalls now align with regulatory and internal standards.
• Reduced Attack Surface – Legacy and unused rules eliminated.
• Streamlined Operations – Multi-vendor complexities simplified under a unified compliance framework.
• Extended Coverage – Assurance now includes core routing infrastructure.
• Sustainable Security – Ongoing reviews embedded for long-term risk reduction.

Status
The journey is ongoing, but the transformation is clear: better compliance, reduced risk, and a stronger security governance model—built to last.