AI Security & Hardening
Secure your AI app before it becomes a problem
AI features are powerful – and they can also leak data, be abused, or break compliance if they’re not designed carefully. I help teams review and harden their AI apps so they can move fast without ignoring security.
Pragmatic security
No 100-page PDF audits. You get a focused review with clear, implementable changes for your current stage.
Why AI apps are different
Traditional web security isn’t enough when your product includes large language models, prompts and agents. Attackers can talk to your system, and that changes the game.
Prompt injection & data exfiltration – attackers can trick the model into revealing things it shouldn’t.
Hidden PII in logs – chat history or payloads stored in logs without anyone realising.
Over-permissive agents – tools and APIs available to AI that should be restricted or scoped.
Unbounded usage – no rate limits, no quotas, easy to abuse or accidentally burn budget.
What I focus on in your AI app
We look at the whole flow – from how users log in, to how prompts are constructed, to what gets logged and where your data goes.
Access & authentication
- Proper login and session handling.
- Role-based access control for admins vs. users.
- API keys and secrets management.
AI layer safety
- Basic prompt injection protection patterns.
- Clear separation between system prompts and user content.
- Guardrails for tools/agents that can call external APIs.
Data & privacy
- What you log, where you store it, and how long.
- Reducing PII in logs and payloads.
- Simple policies for export / deletion when users or clients ask.
Abuse & rate limiting
- Reasonable limits per user / IP / token.
- Protection against brute-force prompt spamming.
- Monitoring for unusual usage patterns.
How the security review works
Step 1
Discovery
Understand your product, architecture and user flows. Access to repo / diagrams if you have them.
Step 2
Review
Inspect authentication, authorisation, AI layer, prompts, data handling and logs.
Step 3
Report
You receive a written report with found issues, severity and prioritised recommendations + quick wins.
Step 4
Implementation
I can implement fixes for you, or collaborate with your internal team to ship changes safely.
Is this service for you?
You're a good fit if
You already have an AI-powered product or internal tool in beta or production.
You handle user data that you really don't want to leak.
You don't have a dedicated security engineer, but you care about doing things properly.
You prefer honest, practical advice over buzzwords and fear tactics.
This is probably not a fit if
You're still at the "idea on paper" stage with no running app.
You're looking for a formal ISO/SOC2 certification audit (I can help lay the groundwork, but not certify).
You expect a magic shield; security is about reducing risk, not eliminating it completely.