Terminal1337 is a UK-registered cybersecurity consultancy specialising in AI/LLM security assessments, vulnerability research, penetration testing, and adversarial red-team operations for organisations that cannot afford to be compromised.
Assessments Delivered
Days to First Finding
Crisis Response Ready
We do not run automated scanners and call it a day. Every engagement is adversarial, manual, and tailored to your threat model — from legacy infrastructure to bleeding-edge AI agents.
Adversarial testing of large language models, AI agents, and RAG pipelines. We test for prompt injection, jailbreaks, data poisoning, excessive agency, and supply-chain compromise using the OWASP Top 10 for LLM and MITRE ATLAS frameworks.
Comprehensive discovery and validation of vulnerabilities across your network, cloud, and application estate. We prioritise by real-world exploitability and business impact, not CVSS score alone.
Goal-oriented penetration testing that simulates real attacker behaviour. Infrastructure, web application, wireless, and social engineering engagements delivered with full chain-of-exploit documentation.
Full-spectrum adversary simulation with no assumed knowledge. We emulate APT tactics, test your SOC detection capabilities, and measure mean-time-to-detect — all with strict scope and safety controls.
Every consultant at Terminal1337 holds active offensive-security certifications and has real-world experience breaking into production systems — including AI pipelines, cloud environments, and financial infrastructure.
We are among the few consultancies globally with dedicated AI/LLM red-team capability, aligned to OWASP AI Exchange, NIST AI RMF, and EU AI Act conformity assessment requirements.
Every finding is manually validated with proof-of-concept exploitation. We do not flood you with scanner output — we deliver actionable, prioritised intelligence.
Our reports map directly to PCI-DSS, ISO 27001, SOC 2, GDPR, HIPAA, and EU AI Act high-risk system obligations. Audit-ready documentation, every time.
Terminal1337 Ltd is a company registered in England and Wales under Company Registration Number 16969632.
Every engagement follows a rigorous, repeatable methodology refined across hundreds of assessments. From scoping to retest, we leave no stone unturned.
Define the attack surface, establish legal authority, and map threats using STRIDE, MITRE ATLAS, and OWASP AI Exchange.
Passive and active intelligence gathering. We map your infrastructure, APIs, AI pipelines, and tool integrations before firing a single payload.
Manual exploitation with proof-of-concept validation. Prompt injection, jailbreaks, SSRF, excessive agency — we test what matters.
Executive and technical reports with CVSS scoring, ATLAS mapping, and a prioritised remediation roadmap. Optional retest included.
Whether you are deploying your first AI agent or hardening a critical financial platform, we deliver the adversarial insight you need to sleep soundly.
Start Your Engagement →hello@terminal1337.com | UK Registered Company