Signal 11 delivers cybersecurity without compromise. We are an elite offensive security team that simulates real-world attacks to expose critical vulnerabilities across web, mobile, cloud, IoT, and infrastructure — before malicious actors ever find them.
Our services include comprehensive manual penetration testing, red team and purple team exercises, application security assessments, secure code reviews, and specialized hardware & IoT hacking. Every engagement is led by OSCP, OSWE, SANS, and other top-certified experts, and our research team has already discovered 10+ CVEs. We don’t just find issues — we deliver clear, actionable remediation that actually strengthens your defences.
Now we’re taking offensive security to the next level. Introducing ShadowCell.ai — our AI-powered penetration testing platform that combines advanced artificial intelligence with elite human expertise. ShadowCell.ai automates repetitive discovery at machine speed while our researchers focus on the complex, high-impact attack paths that only skilled pentesters can uncover. The result? Faster, deeper, and more scalable security testing than ever before.
Whether you need a targeted assessment or enterprise-grade continuous offensive security, Signal 11 gives you full-spectrum protection backed by cutting-edge technology and uncompromising expertise.
Ready to stay ahead of the threat? Get in touch or book a security assessment today.

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