Deutsche Telekom secures hybrid infrastructure with Mondoo
How one of Europe's largest telecommunications providers achieved unified security visibility across 10,000+ assets and reduced vulnerabilities by 85%.
Published December 2025 · Updated August 2026
- Organization
- Deutsche Telekom
- Industry
- Telecommunications
- Headquarters
- Bonn, Germany
- Employees
- 200,000+
- Environment
- Hybrid — on-premises data centers + multi-cloud
- Mondoo's role
- Unified security posture management across the hybrid estate
Who is Deutsche Telekom?
As one of Europe's largest telecommunications providers, Deutsche Telekom operates a vast and complex infrastructure spanning traditional data centers, private clouds, and public cloud environments. With over 200,000 employees and critical telecommunications infrastructure serving millions of customers, maintaining security and compliance across this hybrid environment presented significant challenges.
What security challenges did the hybrid estate create?
The security team needed to ensure compliance with stringent European regulations including GDPR, while also meeting telecommunications-specific security requirements and maintaining ISO 27001 certification across their operations.
The core challenges: managing security across a complex hybrid infrastructure spanning legacy systems and modern cloud services; maintaining compliance with multiple regulatory frameworks including GDPR, ISO 27001, and telecommunications-specific requirements; providing unified visibility across 10,000+ assets distributed across data centers and cloud environments; reducing manual effort in security operations while scaling to meet growing infrastructure demands; and coordinating security policies across multiple teams and business units.
Why did Deutsche Telekom choose Mondoo?
Deutsche Telekom selected Mondoo to provide unified security posture management across their entire hybrid infrastructure. The agentless deployment model was critical for their environment, allowing rapid rollout without impacting production systems or requiring extensive change management processes.
How does Mondoo secure the hybrid infrastructure?
Deutsche Telekom deployed Mondoo's agentless scanning across the hybrid infrastructure for unified asset visibility, and implemented automated compliance monitoring for GDPR, ISO 27001, and CIS benchmarks. Continuous security posture assessment runs with real-time drift detection, integrated with existing ITSM workflows for automated ticket creation and tracking.
Centralized security dashboards serve executive and operational teams, and policy-as-code keeps security configuration consistent across environments.
“The unified visibility across our hybrid infrastructure was a game-changer. We finally have a single pane of glass for our entire security posture.”
Senior Security Architect, Deutsche Telekom
What results did Deutsche Telekom achieve?
Risk-based prioritization sharpened the focus on critical issues, speeding remediation across the estate. IT architecture and compliance posture are now visible in real time on a unified platform, with 10,000+ assets monitored under unified visibility — turning deep insights into instant action.
“Compliance reporting that used to take our team days now takes minutes. The automated evidence collection alone justified the investment.”
Compliance Manager, Deutsche Telekom
“The speed and accuracy of Mondoo's platform, combined with its deep insights into IT architecture, enables customers to quickly remediate issues and significantly reduce CVEs and policy violations.”
- reduction in vulnerabilities across the hybrid estate
- 85%reduction in vulnerabilities across the hybrid estate
- assets monitored with unified visibility
- 10,000+assets monitored with unified visibility
- for compliance reports that previously took days
- Minutesfor compliance reports that previously took days
Frequently asked questions
Mondoo provides unified visibility across more than 10,000 assets distributed over traditional data centers, private clouds, and public cloud environments, with automated compliance monitoring for GDPR, ISO 27001, and CIS benchmarks alongside telecommunications-specific requirements.
No. The agentless deployment model was critical for Deutsche Telekom's environment: it allowed a rapid rollout across the hybrid infrastructure without impacting production systems or requiring extensive change management processes.
Mondoo integrates with the existing ITSM workflows for automated ticket creation and tracking, and centralized security dashboards serve both executive and operational teams. Policy-as-code keeps security configuration consistent across environments.
Compliance reporting that used to take the team days now takes minutes, driven by automated evidence collection across the hybrid estate.
Hybrid infrastructure.One security posture.
Deutsche Telekom is proof that unified security posture management works at carrier scale — 10,000+ assets across data centers and clouds on one platform, vulnerabilities down 85%, and compliance evidence in minutes instead of days.