Adversa AI showed an attack on xAI’s Grok — “Cryptographic Context Injection” — that leaks a user’s identity, location and conversation to an attacker’s server. The technique generalises to almost any public LLM app.
Our analysis
The headline isn’t Grok; it’s that any generative-AI product can be steered into leaking session context through an injection the user never sees. As Cyprus fintech and SaaS firms add personalised AI features, the value of that leaked context — and the incentive to attack it — only grows. Assume everything the model knows about a session can be exfiltrated.
What you should do
- Never rely on the model to keep its own context secret.
- Strip or tokenise PII and sensitive context before it reaches the prompt.
- Add output-side validation and egress controls around LLM responses.
- Test with multi-turn, adversarial injection, not single prompts.
How CyprusPentest helps: our prompt injection testing and LLM application penetration testing test every input and output path.
Source: eSecurity Planet.
Why context injection is so hard to stop
To a language model, your instructions and the untrusted data it processes are the same kind of thing — text in one context. Context injection abuses exactly that: the attacker’s text is read as instruction because nothing structurally separates the two.
No system prompt fixes it, because the defensive instruction is itself just more text the attacker can talk around. For Cyprus AI products, real containment has to live outside the model.
What this means for Cyprus businesses
Context-injection leaks show LLM products fail in ways traditional appsec never anticipated. For every Cyprus company building on a hosted model, the model’s data-handling weaknesses become theirs — with GDPR exposure attached.
How to reduce your exposure
- Assume any untrusted text reaching the model can carry instructions.
- Keep sensitive data out of prompt context and enforce authorisation outside the model.
- Filter and monitor inputs and outputs for injection and leakage.
- Re-test as models and features change.
Harden your LLM product with prompt injection testing and LLM application penetration testing — get a fixed-price quote for your Cyprus business.