Sentinel
Cybersecurity Consultancy
Dedicated to small & mid-sized teams
Berlin · Remote first
Sentinel Cybersecurity Consultancy

Make breaches
a thing of the past.

Sentinel designs pragmatic, enterprise-grade security for small and medium-sized businesses: hardening your websites, clouds, and critical business data without slowing you down.

Explore protection stack
Risk-led, vendor-neutral advice tailored to your infrastructure.
Clear, prioritized roadmap you can execute in weeks, not months.
Based in Berlin — trusted across the EU and beyond.
What we secure

From your public edge to your core data

Sentinel combines red-team mindset with blue-team pragmatism. Every engagement starts with understanding your business, then building a focused, defensible security baseline.

Website protection

Harden your public websites and APIs against real-world attacks. We identify exploitable vulnerabilities, lock down critical paths, and build monitoring that surfaces what matters.

OWASP-led review · CDN & WAF tuning Scope a review

Cloud infrastructure security

Translate best-practice cloud security into concrete guardrails. From IAM and network design to CI/CD and container hardening, we align your architecture with zero-trust principles.

AWS · Azure · GCP · Kubernetes Review my cloud

Business data protection

Map where your sensitive data lives, who can touch it, and how it moves. We then design encryption, backup, and access models that meet regulatory expectations without blocking work.

Data mapping · DLP · Backup strategy Protect my data
Book a confidential assessment

Share a few details about your environment and priorities. We will respond from security@sentinel-sec.de with a proposed scope and timeline within one business day.