Cyber Castrum LLP is a Hyderabad-based security practice delivering penetration testing, AI/LLM security, private on-prem AI, and hands-on cyber training for enterprises, institutions and government.
From a single web-app pentest to a full AI-security programme - human expertise where it matters, automation where it scales.
Manual, business-logic-aware testing of web, API, mobile and network assets - with verified findings and prioritised, developer-ready remediation.
Dynamic and static analysis integrated into your SDLC, plus secure code review to catch vulnerabilities before release.
Red-teaming for AI agents and LLM applications - prompt injection, jailbreaks, data leakage and the full OWASP LLM Top 10. Few firms offer this; we do.
We customise and deploy AI models on your own infrastructure so sensitive data never leaves your building. See how ↓
Gap assessments, audit readiness and advisory for ISO 27001 and industry security standards - mapped to controls that matter.
Smart-contract review and real-time on-chain monitoring - proxy upgrades, ownership changes, mint/burn and large-transfer alerting.
Engineers paste endpoints, tokens and source code into public AI tools every day. That data leaves your walls and is retained on servers you don't control. We fix that.
Cyber Castrum customises open-source AI models, fine-tunes them on your domain, and deploys them fully on-premise or air-gapped - a security co-pilot that reasons like your team, with zero data egress.
Practitioner-led courses taught on live, deliberately-vulnerable applications - not slideware. For enterprise teams, institutions and government programmes, with certification.
Web & API pentesting, advanced exploitation (SSRF, RCE), Burp Suite mastery and secure code review.
The LLM Top 10 for developers, red-teaming AI agents, and building & running secure private AI.
Secure coding by language, shift-left CI security gates, and practical threat modeling.
Smart-contract vulnerability classes, DeFi monitoring and on-chain incident response.
SOC-analyst upskilling, "AppSec engineer" bootcamps and private CTF events for teams.
We test AI systems and build secure AI - a capability that's still rare in the market.
Every finding is re-tested and proven, so you fix real issues - not false positives.
The same engineers who run engagements train your people. Knowledge transfers.
On-prem tooling and air-gapped AI keep your most sensitive assets in your control.
A client's AI-driven security-operations agent needed adversarial testing before wider rollout. We built a purpose-made harness covering the OWASP Web/API and LLM Top 10, every request routed through an intercepting proxy for full traceability.
Headline finding: the agent could be manipulated into treating attacker-supplied procedures as trusted - and suppressing genuine threats. Every issue was re-verified and delivered with concrete fixes.
Penetration testing and VAPT, application security (DAST and SAST), AI and LLM security red-teaming, private on-premise security AI, ISO 27001 compliance, blockchain security, and hands-on cyber security training.
We customise open-source AI models, fine-tune them on your domain, and deploy them fully on-premise or air-gapped, so sensitive data never leaves your infrastructure. Zero data egress, fully owned by you.
Yes. We red-team AI agents and LLM applications for prompt injection, jailbreaks, data leakage and the full OWASP LLM Top 10, alongside the OWASP Web and API Top 10.
We are based in Kondapur, Hyderabad, Telangana, India, and serve clients worldwide.
Yes. Cyber Castrum Academy delivers hands-on, practitioner-led training on live vulnerable applications across offensive security, AI/LLM security, DevSecOps and blockchain, with certification, for enterprises, institutions and government.
Tell us what you need secured or which team needs training. We'll respond within one business day.
Send us your requirement and we'll come back within one business day. Include your scope, timeline, and which service you need — pentest, appsec, AI/LLM security, compliance, or Academy training.
Email your enquiry → Or message us on WhatsApp+91 96882 74444
Kondapur, Sriram Nagar Rd,
Hyderabad, Telangana 500084, India