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10 Feb 2025

Industry:Technology & Communications

3 min reading time

Global Telecom Provider Finds Hidden Security Weaknesses through Controls Validation

telecom security

A global telecommunications company recognised that traditional security testing approaches — vulnerability scanning, penetration testing, and even red teaming — weren't providing complete assurance about their security controls' effectiveness. 

Chaleit offered expert controls validation, which helped the company uncover and address critical gaps in its security infrastructure.

The challenge

Despite having comprehensive security programs, including vulnerability management and red team exercises, the organisation needed to validate its security controls' actual effectiveness beyond surface-level testing. They wanted to drive next-level maturity and knew that even small “gaps” or “misconfigurations” could lead to severe consequences.

Key issues included:

  • Limitations of traditional vulnerability scanning

  • Need to identify misconfigurations not caught by standard tools

  • Difficulty in finding "needle in the haystack" security gaps

  • Complex security infrastructure with multiple controls

  • Need to validate effectiveness across 250+ applications

"Traditional vulnerability management tools find individual issues but miss the mechanisms that allow sophisticated attacks to succeed," noted Chaleit’s VP of Technical Services.

The solution

Chaleit implemented a collaborative approach that helped the organisation achieve a better security posture. 

Strategic assessment

  • Analysed existing control implementations

  • Developed targeted threat models

  • Created collaborative testing scope

  • Identified critical control areas

Technical validation

  • Conducted comprehensive email gateway testing

  • Validated SSO implementations

  • Assessed security control configurations

  • Identified bypass opportunities

The outcome and aftermath

The controls validation process revealed significant findings.

Control gaps

  • Found 20% of applications lacked proper SSO implementation

  • Identified critical email security bypass methods

  • Discovered multiple control misconfigurations

  • Validated actual control effectiveness

Implementation impact

  • Successfully remediated identified gaps

  • Improved control configurations

  • Enhanced security architecture

  • Established ongoing validation processes

This project's exceptional results came from its focus on practical validation rather than theoretical testing. By working collaboratively with the client to identify and address control gaps, we achieved real security improvements.

Key takeaways

  1. Standard security testing often misses critical control gaps.

  2. Strategic scope collaboration maximises control validation effectiveness. 

  3. Real security improvement requires hands-on remediation support.

  4. Continuous validation ensures sustained control effectiveness.

  5. Partnership-driven solutions enable lasting security improvements. 

  6. Collaborative validation eliminates the greatest risk: uncertainty. 

The engagement demonstrates how organisations can move beyond standard security testing to achieve genuine protection. Through systematic assessment and collaborative improvement, the client achieved measurable security enhancements.

Looking to validate your security controls' real-world effectiveness?

Contact us to discuss your organisation’s unique needs.

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About this article

Industries:

  • Technology & Communications

Service Areas:

  • Adversary Simulation

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