LLM Penetration Testing UK | CREST-Accredited

UK-based, CREST-accredited penetration testing for large language model applications.

What is LLM Penetration Testing in the UK?

LLM penetration testing is hands-on attack simulation against your language-model application. We deliver it as a UK firm accredited in CREST's first AI-Enabled cohort.

Why it matters

UK organisations shipping LLM features need to prove they are safe, to customers, regulators and insurers. The attack surface is new, and off-the-shelf tools do not cover it.

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How Solusec tests it

A UK-based CREST-accredited tester scopes and runs the engagement against your real LLM app, delivering findings, fixes and a free retest.

AI testing, led by a human

Solusec is one of the first firms worldwide accredited under CREST's AI-Enabled Penetration Testing standard, so our use of AI is independently assured: responsible, transparent and always human-led. You get faster, broader testing, your data stays out of public AI tools, and every finding is validated by a qualified tester. Read about the accreditation.

What you get

You get a clear, prioritised report mapped to business risk, a walkthrough of every finding with practical fixes your developers can action, and a free retest once you have remediated. No scanner dump, no jargon, no sales team: you deal directly with the tester.

Common questions

Do you work remotely across the UK?

Yes, nationwide, with onsite work across the West Midlands and Shropshire where it helps.

How long does an LLM pen test take?

It depends on scope; we agree a fixed price and timeline after a short scoping call.

How quickly can testing start?

After a short, free scoping call we give a fixed price and a start date, often within days.

Is your AI use safe and independently assured?

Yes. Solusec holds CREST's AI-Enabled Penetration Testing accreditation, which independently assures that our AI use is responsible, secure and human-led.

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