A shield for tailored AI applications
Protect your internally developed applications and AI systems from prompt injections, information leaks and toxic LLM responses

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Wokingham
RG40 3AE Berkshire
+44 (7887) 505 116
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190 00 Prague
+420 (730) 561 700
Vienna (A)
Scheydgasse 41
A-1210 Vienna
+43 (660) 400 1409
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A Layered Security Framework for Applications
AI threat protection shield
Get real-time, semantic defense against 13 core and advanced AI threats, including prompt injection, jailbreaking and data exfiltration.
1
Data leakage fortress
With over 950 pre-built rules, our enterprise-grade DLP prevents sensitive data like API keys, credentials and customer PII from being exposed through your application.
2
Multi-word pattern protection
Go beyond simple keywords. Our AI-powered engine detects and blocks malicious or unwanted multi-word phrases in real-time with near-zero false positives.
3
Effortless integration
Switch your API endpoint from "api.openai.com" to "app.nexfirewall.com". That's it. You get enterprise-grade security in less than 5 minutes.
4
Protecting your AI solutions
While your custom AI applications deliver significant value, they are also high-value targets for sophisticated AI-specific attacks. Threats like prompt injection, data leakage and jailbreaking can disrupt your systems, compromise critical data, and damage your brand image.

A resilient barrier securing your AI systems
A Nex Firewall protects your custom applications through an all-encompassing four-layer defense. Being fully OpenAI API compatible, it allows for effortless integration - by modifying just one line of code to point to our endpoint, your application gains instant protection with no need for SDK changes or intricate configuration.