LLM Penetration Testing in the UK
UK-based, CREST-accredited penetration testing for large language model applications.
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.
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 organisations 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.
Talk to us about testing
Tell us what you need looked at and we will tell you what the work actually involves, what it costs and when we can do it. CREST accredited, and the testing is done by the person you speak to.
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.
Related AI security testing
Free, no obligation
Understand your exposure
An attacker’s first move is not an attack, it is a look. So we look first, and send you what we find, worst first.
- Services and ports you did not know were open
- Security misconfigurations on anything public facing
- Known vulnerabilities already indexed by engines like Shodan
- Company credentials sitting in known breach data
The only question is: do you know where and how to look?
We reply within one business day. Prefer to talk first? 01902 288763 or info@solusec.co.uk.
Nothing is touched on your systems. It is all public and already indexed, just scattered. We pull it together, which is what an attacker does first.
Get your AI tested by a CREST-accredited team
Free scoping call, fixed-price quote, findings you can act on, and a free retest. Your data never goes into public AI tools.